9x+120=4x+140

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Solution for 9x+120=4x+140 equation:


Simplifying
9x + 120 = 4x + 140

Reorder the terms:
120 + 9x = 4x + 140

Reorder the terms:
120 + 9x = 140 + 4x

Solving
120 + 9x = 140 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
120 + 9x + -4x = 140 + 4x + -4x

Combine like terms: 9x + -4x = 5x
120 + 5x = 140 + 4x + -4x

Combine like terms: 4x + -4x = 0
120 + 5x = 140 + 0
120 + 5x = 140

Add '-120' to each side of the equation.
120 + -120 + 5x = 140 + -120

Combine like terms: 120 + -120 = 0
0 + 5x = 140 + -120
5x = 140 + -120

Combine like terms: 140 + -120 = 20
5x = 20

Divide each side by '5'.
x = 4

Simplifying
x = 4

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