9x-(3x+12)=18

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Solution for 9x-(3x+12)=18 equation:


Simplifying
9x + -1(3x + 12) = 18

Reorder the terms:
9x + -1(12 + 3x) = 18
9x + (12 * -1 + 3x * -1) = 18
9x + (-12 + -3x) = 18

Reorder the terms:
-12 + 9x + -3x = 18

Combine like terms: 9x + -3x = 6x
-12 + 6x = 18

Solving
-12 + 6x = 18

Solving for variable 'x'.

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

Add '12' to each side of the equation.
-12 + 12 + 6x = 18 + 12

Combine like terms: -12 + 12 = 0
0 + 6x = 18 + 12
6x = 18 + 12

Combine like terms: 18 + 12 = 30
6x = 30

Divide each side by '6'.
x = 5

Simplifying
x = 5

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