x-(-7x)=x+9

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


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

Remove parenthesis around (-7x)
x + -1 * -7x = x + 9

Multiply -1 * -7
x + 7x = x + 9

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

Reorder the terms:
8x = 9 + x

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

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

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

Divide each side by '7'.
x = 1.285714286

Simplifying
x = 1.285714286

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