-42+12x-8x=72

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Solution for -42+12x-8x=72 equation: 


Simplifying
-42 + 12x + -8x = 72

Combine like terms: 12x + -8x = 4x
-42 + 4x = 72

Solving
-42 + 4x = 72

Solving for variable 'x'.

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

Add '42' to each side of the equation.
-42 + 42 + 4x = 72 + 42

Combine like terms: -42 + 42 = 0
0 + 4x = 72 + 42
4x = 72 + 42

Combine like terms: 72 + 42 = 114
4x = 114

Divide each side by '4'.
x = 28.5

Simplifying
x = 28.5

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