-9=x-8+(-8x)-15

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Solution for -9=x-8+(-8x)-15 equation:


Simplifying
-9 = x + -8 + (-8x) + -15

Reorder the terms:
-9 = -8 + -15 + x + (-8x)

Combine like terms: -8 + -15 = -23
-9 = -23 + x + (-8x)

Combine like terms: x + (-8x) = -7x
-9 = -23 + -7x

Solving
-9 = -23 + -7x

Solving for variable 'x'.

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

Add '7x' to each side of the equation.
-9 + 7x = -23 + -7x + 7x

Combine like terms: -7x + 7x = 0
-9 + 7x = -23 + 0
-9 + 7x = -23

Add '9' to each side of the equation.
-9 + 9 + 7x = -23 + 9

Combine like terms: -9 + 9 = 0
0 + 7x = -23 + 9
7x = -23 + 9

Combine like terms: -23 + 9 = -14
7x = -14

Divide each side by '7'.
x = -2

Simplifying
x = -2

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