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

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Solution for 7x+9=-(x-1)+8x equation: 


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

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

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

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

Add '-7x' to each side of the equation.
9 + 7x + -7x = 1 + 7x + -7x

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

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

Solving
9 = 1

Couldn't find a variable to solve for.

This equation is invalid, the left and right sides are not equal, therefore there is no solution.

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