It depends on what the equation is!
A simple equation, true when w = -4
2x + w = -w
The "answer" is usually the number that you can put in place of 'W'that will make the statement true.- 7/2 W = 20Multiply each side of the equation by 2:-7 W = 40Divide each side by -7 :W = - 40/7
Without an equality sign the given expression is not an equation but it can be simplified to: W-15
I understand this equation to be 7w = 42. The principle we use for solving equations like this one is that we can do the same thing to both sides of the equation and the equation will still be _true_. We want the 'w' by itself. This implies ridding the left side of the 7. We can turn it into a one (1) by dividing it by 7. But if we do that to the left side of the equation then we must also do that to the right side. 7w/7 = 42/7 1w = 6 or w = 6, the result.
A simple equation, true when w = -4
The idea is that a regular equation is simply a statement that two quantities are the same; this statement may, or may not, be true - or it may depend on the value of the variables. For example, x + 2 = 5 is true, only if x is replaced with 3. An "identity" is an equation that is true for any value of the variables.
w - x + x = wand w + x - x = w are true for all values of w and x and that is why they are called identities.
The "answer" is the number that 'w' must be in order to make that statement true.Here is the highly technical and complex method that can be used to find it if you'recareful :First, write the equation:-5w = 125Now, divide each side of the equation by -5 : w = -25
2x + w = -w
The "answer" is usually the number that you can put in place of 'W'that will make the statement true.- 7/2 W = 20Multiply each side of the equation by 2:-7 W = 40Divide each side by -7 :W = - 40/7
If: w-7 = 11 Then: w = 18
Without an equality sign the given expression is not an equation but it can be simplified to: W-15
W+5y
It is the equation W = 2n + 5.
An equation does not need variables. 4+5=9 is an equation as is 5+W=9
If WXYZ is a square, which statements must be true? Check all that apply: ANSWERS (apex): angle W is supplementary to angle Y. angle W is congruent to angle Y. angle W is a right angle. WXYZ is a parallelogram WX ≅ XY