42=-138+10x

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Solution for 42=-138+10x equation:


Simplifying
42 = -138 + 10x

Solving
42 = -138 + 10x

Solving for variable 'x'.

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

Add '-10x' to each side of the equation.
42 + -10x = -138 + 10x + -10x

Combine like terms: 10x + -10x = 0
42 + -10x = -138 + 0
42 + -10x = -138

Add '-42' to each side of the equation.
42 + -42 + -10x = -138 + -42

Combine like terms: 42 + -42 = 0
0 + -10x = -138 + -42
-10x = -138 + -42

Combine like terms: -138 + -42 = -180
-10x = -180

Divide each side by '-10'.
x = 18

Simplifying
x = 18

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