18+12x-9-9x=69

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Solution for 18+12x-9-9x=69 equation:


Simplifying
18 + 12x + -9 + -9x = 69

Reorder the terms:
18 + -9 + 12x + -9x = 69

Combine like terms: 18 + -9 = 9
9 + 12x + -9x = 69

Combine like terms: 12x + -9x = 3x
9 + 3x = 69

Solving
9 + 3x = 69

Solving for variable 'x'.

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

Add '-9' to each side of the equation.
9 + -9 + 3x = 69 + -9

Combine like terms: 9 + -9 = 0
0 + 3x = 69 + -9
3x = 69 + -9

Combine like terms: 69 + -9 = 60
3x = 60

Divide each side by '3'.
x = 20

Simplifying
x = 20

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