9-7x=13-(8x+7)

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Solution for 9-7x=13-(8x+7) equation:


Simplifying
9 + -7x = 13 + -1(8x + 7)

Reorder the terms:
9 + -7x = 13 + -1(7 + 8x)
9 + -7x = 13 + (7 * -1 + 8x * -1)
9 + -7x = 13 + (-7 + -8x)

Combine like terms: 13 + -7 = 6
9 + -7x = 6 + -8x

Solving
9 + -7x = 6 + -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.
9 + -7x + 8x = 6 + -8x + 8x

Combine like terms: -7x + 8x = 1x
9 + 1x = 6 + -8x + 8x

Combine like terms: -8x + 8x = 0
9 + 1x = 6 + 0
9 + 1x = 6

Add '-9' to each side of the equation.
9 + -9 + 1x = 6 + -9

Combine like terms: 9 + -9 = 0
0 + 1x = 6 + -9
1x = 6 + -9

Combine like terms: 6 + -9 = -3
1x = -3

Divide each side by '1'.
x = -3

Simplifying
x = -3

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