9x-30=6x+90

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Solution for 9x-30=6x+90 equation:


Simplifying
9x + -30 = 6x + 90

Reorder the terms:
-30 + 9x = 6x + 90

Reorder the terms:
-30 + 9x = 90 + 6x

Solving
-30 + 9x = 90 + 6x

Solving for variable 'x'.

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

Add '-6x' to each side of the equation.
-30 + 9x + -6x = 90 + 6x + -6x

Combine like terms: 9x + -6x = 3x
-30 + 3x = 90 + 6x + -6x

Combine like terms: 6x + -6x = 0
-30 + 3x = 90 + 0
-30 + 3x = 90

Add '30' to each side of the equation.
-30 + 30 + 3x = 90 + 30

Combine like terms: -30 + 30 = 0
0 + 3x = 90 + 30
3x = 90 + 30

Combine like terms: 90 + 30 = 120
3x = 120

Divide each side by '3'.
x = 40

Simplifying
x = 40

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