5x-129+2x-21=120

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Solution for 5x-129+2x-21=120 equation:


Simplifying
5x + -129 + 2x + -21 = 120

Reorder the terms:
-129 + -21 + 5x + 2x = 120

Combine like terms: -129 + -21 = -150
-150 + 5x + 2x = 120

Combine like terms: 5x + 2x = 7x
-150 + 7x = 120

Solving
-150 + 7x = 120

Solving for variable 'x'.

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

Add '150' to each side of the equation.
-150 + 150 + 7x = 120 + 150

Combine like terms: -150 + 150 = 0
0 + 7x = 120 + 150
7x = 120 + 150

Combine like terms: 120 + 150 = 270
7x = 270

Divide each side by '7'.
x = 38.57142857

Simplifying
x = 38.57142857

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