39-x=-87-8x

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Solution for 39-x=-87-8x equation:


Simplifying
39 + -1x = -87 + -8x

Solving
39 + -1x = -87 + -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.
39 + -1x + 8x = -87 + -8x + 8x

Combine like terms: -1x + 8x = 7x
39 + 7x = -87 + -8x + 8x

Combine like terms: -8x + 8x = 0
39 + 7x = -87 + 0
39 + 7x = -87

Add '-39' to each side of the equation.
39 + -39 + 7x = -87 + -39

Combine like terms: 39 + -39 = 0
0 + 7x = -87 + -39
7x = -87 + -39

Combine like terms: -87 + -39 = -126
7x = -126

Divide each side by '7'.
x = -18

Simplifying
x = -18

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