10x+7=9(x-9)-8

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Solution for 10x+7=9(x-9)-8 equation:


Simplifying
10x + 7 = 9(x + -9) + -8

Reorder the terms:
7 + 10x = 9(x + -9) + -8

Reorder the terms:
7 + 10x = 9(-9 + x) + -8
7 + 10x = (-9 * 9 + x * 9) + -8
7 + 10x = (-81 + 9x) + -8

Reorder the terms:
7 + 10x = -81 + -8 + 9x

Combine like terms: -81 + -8 = -89
7 + 10x = -89 + 9x

Solving
7 + 10x = -89 + 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.
7 + 10x + -9x = -89 + 9x + -9x

Combine like terms: 10x + -9x = 1x
7 + 1x = -89 + 9x + -9x

Combine like terms: 9x + -9x = 0
7 + 1x = -89 + 0
7 + 1x = -89

Add '-7' to each side of the equation.
7 + -7 + 1x = -89 + -7

Combine like terms: 7 + -7 = 0
0 + 1x = -89 + -7
1x = -89 + -7

Combine like terms: -89 + -7 = -96
1x = -96

Divide each side by '1'.
x = -96

Simplifying
x = -96

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