-15=-9x+7x

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


Simplifying
-15 = -9x + 7x

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

Solving
-15 = -2x

Solving for variable 'x'.

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

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

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

Add '15' to each side of the equation.
-15 + 15 + 2x = 0 + 15

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

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

Divide each side by '2'.
x = 7.5

Simplifying
x = 7.5

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