120-70=89+x

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Solution for 120-70=89+x equation:


Simplifying
120 + -70 = 89 + x

Combine like terms: 120 + -70 = 50
50 = 89 + x

Solving
50 = 89 + 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.
50 + -1x = 89 + x + -1x

Combine like terms: x + -1x = 0
50 + -1x = 89 + 0
50 + -1x = 89

Add '-50' to each side of the equation.
50 + -50 + -1x = 89 + -50

Combine like terms: 50 + -50 = 0
0 + -1x = 89 + -50
-1x = 89 + -50

Combine like terms: 89 + -50 = 39
-1x = 39

Divide each side by '-1'.
x = -39

Simplifying
x = -39

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