7x-30=2x+120

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Solution for 7x-30=2x+120 equation:


Simplifying
7x + -30 = 2x + 120

Reorder the terms:
-30 + 7x = 2x + 120

Reorder the terms:
-30 + 7x = 120 + 2x

Solving
-30 + 7x = 120 + 2x

Solving for variable 'x'.

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

Add '-2x' to each side of the equation.
-30 + 7x + -2x = 120 + 2x + -2x

Combine like terms: 7x + -2x = 5x
-30 + 5x = 120 + 2x + -2x

Combine like terms: 2x + -2x = 0
-30 + 5x = 120 + 0
-30 + 5x = 120

Add '30' to each side of the equation.
-30 + 30 + 5x = 120 + 30

Combine like terms: -30 + 30 = 0
0 + 5x = 120 + 30
5x = 120 + 30

Combine like terms: 120 + 30 = 150
5x = 150

Divide each side by '5'.
x = 30

Simplifying
x = 30

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