-15-7x=25-9x

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Solution for -15-7x=25-9x equation:


Simplifying
-15 + -7x = 25 + -9x

Solving
-15 + -7x = 25 + -9x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '9x' to each side of the equation.
-15 + -7x + 9x = 25 + -9x + 9x

Combine like terms: -7x + 9x = 2x
-15 + 2x = 25 + -9x + 9x

Combine like terms: -9x + 9x = 0
-15 + 2x = 25 + 0
-15 + 2x = 25

Add '15' to each side of the equation.
-15 + 15 + 2x = 25 + 15

Combine like terms: -15 + 15 = 0
0 + 2x = 25 + 15
2x = 25 + 15

Combine like terms: 25 + 15 = 40
2x = 40

Divide each side by '2'.
x = 20

Simplifying
x = 20

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