-3x+42=6x-129

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Solution for -3x+42=6x-129 equation:


Simplifying
-3x + 42 = 6x + -129

Reorder the terms:
42 + -3x = 6x + -129

Reorder the terms:
42 + -3x = -129 + 6x

Solving
42 + -3x = -129 + 6x

Solving for variable 'x'.

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

Add '-6x' to each side of the equation.
42 + -3x + -6x = -129 + 6x + -6x

Combine like terms: -3x + -6x = -9x
42 + -9x = -129 + 6x + -6x

Combine like terms: 6x + -6x = 0
42 + -9x = -129 + 0
42 + -9x = -129

Add '-42' to each side of the equation.
42 + -42 + -9x = -129 + -42

Combine like terms: 42 + -42 = 0
0 + -9x = -129 + -42
-9x = -129 + -42

Combine like terms: -129 + -42 = -171
-9x = -171

Divide each side by '-9'.
x = 19

Simplifying
x = 19

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