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

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


Simplifying
7x + -1(8x + 8) = x + -9

Reorder the terms:
7x + -1(8 + 8x) = x + -9
7x + (8 * -1 + 8x * -1) = x + -9
7x + (-8 + -8x) = x + -9

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

Combine like terms: 7x + -8x = -1x
-8 + -1x = x + -9

Reorder the terms:
-8 + -1x = -9 + x

Solving
-8 + -1x = -9 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
-8 + -1x + -1x = -9 + x + -1x

Combine like terms: -1x + -1x = -2x
-8 + -2x = -9 + x + -1x

Combine like terms: x + -1x = 0
-8 + -2x = -9 + 0
-8 + -2x = -9

Add '8' to each side of the equation.
-8 + 8 + -2x = -9 + 8

Combine like terms: -8 + 8 = 0
0 + -2x = -9 + 8
-2x = -9 + 8

Combine like terms: -9 + 8 = -1
-2x = -1

Divide each side by '-2'.
x = 0.5

Simplifying
x = 0.5

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