-5x-42+12x=77

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Solution for -5x-42+12x=77 equation:


Simplifying
-5x + -42 + 12x = 77

Reorder the terms:
-42 + -5x + 12x = 77

Combine like terms: -5x + 12x = 7x
-42 + 7x = 77

Solving
-42 + 7x = 77

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 + 7x = 77 + 42

Combine like terms: -42 + 42 = 0
0 + 7x = 77 + 42
7x = 77 + 42

Combine like terms: 77 + 42 = 119
7x = 119

Divide each side by '7'.
x = 17

Simplifying
x = 17

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