9x+90=4x+120

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Solution for 9x+90=4x+120 equation:


Simplifying
9x + 90 = 4x + 120

Reorder the terms:
90 + 9x = 4x + 120

Reorder the terms:
90 + 9x = 120 + 4x

Solving
90 + 9x = 120 + 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.
90 + 9x + -4x = 120 + 4x + -4x

Combine like terms: 9x + -4x = 5x
90 + 5x = 120 + 4x + -4x

Combine like terms: 4x + -4x = 0
90 + 5x = 120 + 0
90 + 5x = 120

Add '-90' to each side of the equation.
90 + -90 + 5x = 120 + -90

Combine like terms: 90 + -90 = 0
0 + 5x = 120 + -90
5x = 120 + -90

Combine like terms: 120 + -90 = 30
5x = 30

Divide each side by '5'.
x = 6

Simplifying
x = 6

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