x-(-8x)=7+x

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


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

Remove parenthesis around (-8x)
x + -1 * -8x = 7 + x

Multiply -1 * -8
x + 8x = 7 + x

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

Solving
9x = 7 + 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.
9x + -1x = 7 + x + -1x

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

Combine like terms: x + -1x = 0
8x = 7 + 0
8x = 7

Divide each side by '8'.
x = 0.875

Simplifying
x = 0.875

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