# How do you solve an or problem if a variable is unrestricted in sign?

Solve the problem using the + sign for the variable. Then solve the problem using the - sign for the variable. Report your answer as the answer that you got using + or the answer that you got using -.

### Is equation the same as a problem?

An equations is a math sentence that asserts the quality of two expressions. Basically it's a math sentence that contains a variable and and equal sign. Is it a problem? Only if you have to solve it! It's easily solved by doing the inverse operation stated with the variable. Ex: n - 32 = 16 To solve you ADD 32 to both sides of the = sign. (to each expression) a - 32 + 32…

### Why can't you use a equals equals sign for a for statement?

This answer applies to programming languages in general. The equals sign is used for assignment. For example, the code "$variable = 1" assigns the value of 1 to the variable $variable. If you want to test whether values are the same (equality) the double equals sign is used. For example, when you want to verify that $variable has been assigned the value of 1 you would use: $variable == 1

### How do you solve an inequality in one variable?

It depends on the specific inequality. In the simplest cases, it is solved just like an equation; except that you must be careful when multiplying and dividing - if you multiply or divide both sides by a negative number, you must switch the inequality sign. For instance, a "less-than" sign would be changed to a "greater-than" sign.

### How do you find the value of x when there is no equal sign in the equation?

You cannot explicitly find the value of x without an equal sign, as an equation without an equals sign is an algebraic expression. However, we can turn your expression into an equation by adding in an equals sign, but setting the value to a variable. For example, 2x+5=y, or 5x2-4x=y. You can solve for x like that. The phrase "... there is no equal sign in the equation ..." is a meaningless description. Without an…

### How do you solve proportions with a variable?

Note: When I say number, I am also including variables and variables with a coefficient (terms). You Have to Cross-Multiply, and then solve algebraically. Lets say you have a problem like this: x/2=2/8 # Multiply the Top Left number with the Bottom Right number, and put it on one side of an = sign # Multiply the Bottom Left number with the Top Right number, and put it on the other side of the =…

### What is the first thing you need to do when you have an equation?

Well, we need to know what the problem is. If you have an equation with a variable in it, like 3x = 9, you need to solve for x, i.e., get x on one side and anumber on the other side. An equation can also be like 2 + 2 = 4, which is already fully given to you. An equation could be anything with an equals sign (=), including the following: 42 = the…

### What number is 5 percent of 82?

Whenever you see "what number" use a variable. I like to use the variable "a". First, change 5 percent to a decimal. Do this by taking the percent (5) and dividing it by 100. You will get 0.05. Set your problem up. Whenever you see "is" in a math problem think of an = sign. Whenever you see "of" in a math problem think of multiplying so, what number is 5 percent of 82, a…

### How to solve an inequality math problem?

Similar to an equation. The main difference is the following: when you multiply or divide by a negative number, you have to switch the sign. Example: -3x < 12 Now divide by (-3): x > -4 Note that, since I divided by a negative number, I had to change the "less than" to a "greater than". This rule becomes somewhat complicated when you need to multiply or divide by the variable - you have to…

### What are equations in algebra?

An equation consists of two expressions joined by an '=' sign. If there is only one variable, you can usually solve the equation (find the value of the variable that makes the equation true). Example: 3x + 5 = 11: the solution is 2. (The techniques for finding the solution are a major part of algebra.) Check that 3(2) +5 = 6+5 = 11.