15x+20x-18=30x+120

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Solution for 15x+20x-18=30x+120 equation:


Simplifying
15x + 20x + -18 = 30x + 120

Reorder the terms:
-18 + 15x + 20x = 30x + 120

Combine like terms: 15x + 20x = 35x
-18 + 35x = 30x + 120

Reorder the terms:
-18 + 35x = 120 + 30x

Solving
-18 + 35x = 120 + 30x

Solving for variable 'x'.

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

Add '-30x' to each side of the equation.
-18 + 35x + -30x = 120 + 30x + -30x

Combine like terms: 35x + -30x = 5x
-18 + 5x = 120 + 30x + -30x

Combine like terms: 30x + -30x = 0
-18 + 5x = 120 + 0
-18 + 5x = 120

Add '18' to each side of the equation.
-18 + 18 + 5x = 120 + 18

Combine like terms: -18 + 18 = 0
0 + 5x = 120 + 18
5x = 120 + 18

Combine like terms: 120 + 18 = 138
5x = 138

Divide each side by '5'.
x = 27.6

Simplifying
x = 27.6

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