-9-3=8x+7x

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Solution for -9-3=8x+7x equation:


Simplifying
-9 + -3 = 8x + 7x

Combine like terms: -9 + -3 = -12
-12 = 8x + 7x

Combine like terms: 8x + 7x = 15x
-12 = 15x

Solving
-12 = 15x

Solving for variable 'x'.

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

Add '-15x' to each side of the equation.
-12 + -15x = 15x + -15x

Combine like terms: 15x + -15x = 0
-12 + -15x = 0

Add '12' to each side of the equation.
-12 + 12 + -15x = 0 + 12

Combine like terms: -12 + 12 = 0
0 + -15x = 0 + 12
-15x = 0 + 12

Combine like terms: 0 + 12 = 12
-15x = 12

Divide each side by '-15'.
x = -0.8

Simplifying
x = -0.8

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