This website isn't equipped to reproduce most mathematical symbols in the questions. I'll see if I can translate.
2x + 3(x - 10) = 45
2x + 3x - 30 = 45
5x - 30 = 45
5x = 75
x = 15
Check it.
2(15) + 3(15 - 10) = 45
30 + 15 = 45
It checks.
4(x- 8) + 10 = -10
4x + 10 + 3x = 40 - 3x 4x + 10 + 3x + 3x = 40 20x = 40 x = 2
the solution is the answer to the equation. A solution is any value that makes the equation true. x + 2 = 10 has exactly one solution ....x=8 x + 2 > 10 has infinitely many solutions....x=9 or 10 or 11 or 12 or 13, etc
There is one solution. To find it, divide both sides of the equation by 2. This leaves you with x=5, where 5 is your solution.
Equation: y-6 = 2/5(x-10)Solution: 5y = 2x+10
There is no equation in the question, only an expression. An expression cannot have a solution.
1,2.5
-5
An equation, solution x = -10
4(x- 8) + 10 = -10
the answer is y minus 10 divided by 2.
An equation, solution x = -10
It is a linear equation in x. It has a solution, which is x = -5
It is a linear equation in the single variable, m. It has the solution m = 0
The equation has no solution. Since if you combine like terms, you get 0=-10 which isn't true, there are no solutions to the equation.
Solution: x = 1/4 and x = -3.
Without any equality signs the given terms can't be considered to be equations.