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

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


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

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

Reorder the terms:
-10 + 9x = 8(-8 + x) + -7
-10 + 9x = (-8 * 8 + x * 8) + -7
-10 + 9x = (-64 + 8x) + -7

Reorder the terms:
-10 + 9x = -64 + -7 + 8x

Combine like terms: -64 + -7 = -71
-10 + 9x = -71 + 8x

Solving
-10 + 9x = -71 + 8x

Solving for variable 'x'.

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

Add '-8x' to each side of the equation.
-10 + 9x + -8x = -71 + 8x + -8x

Combine like terms: 9x + -8x = 1x
-10 + 1x = -71 + 8x + -8x

Combine like terms: 8x + -8x = 0
-10 + 1x = -71 + 0
-10 + 1x = -71

Add '10' to each side of the equation.
-10 + 10 + 1x = -71 + 10

Combine like terms: -10 + 10 = 0
0 + 1x = -71 + 10
1x = -71 + 10

Combine like terms: -71 + 10 = -61
1x = -61

Divide each side by '1'.
x = -61

Simplifying
x = -61

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