-78+8x=39-x

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Solution for -78+8x=39-x equation:


Simplifying
-78 + 8x = 39 + -1x

Solving
-78 + 8x = 39 + -1x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add 'x' to each side of the equation.
-78 + 8x + x = 39 + -1x + x

Combine like terms: 8x + x = 9x
-78 + 9x = 39 + -1x + x

Combine like terms: -1x + x = 0
-78 + 9x = 39 + 0
-78 + 9x = 39

Add '78' to each side of the equation.
-78 + 78 + 9x = 39 + 78

Combine like terms: -78 + 78 = 0
0 + 9x = 39 + 78
9x = 39 + 78

Combine like terms: 39 + 78 = 117
9x = 117

Divide each side by '9'.
x = 13

Simplifying
x = 13

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