30x+120=40x

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Solution for 30x+120=40x equation:


Simplifying
30x + 120 = 40x

Reorder the terms:
120 + 30x = 40x

Solving
120 + 30x = 40x

Solving for variable 'x'.

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

Add '-40x' to each side of the equation.
120 + 30x + -40x = 40x + -40x

Combine like terms: 30x + -40x = -10x
120 + -10x = 40x + -40x

Combine like terms: 40x + -40x = 0
120 + -10x = 0

Add '-120' to each side of the equation.
120 + -120 + -10x = 0 + -120

Combine like terms: 120 + -120 = 0
0 + -10x = 0 + -120
-10x = 0 + -120

Combine like terms: 0 + -120 = -120
-10x = -120

Divide each side by '-10'.
x = 12

Simplifying
x = 12

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