18*18=12*(12+x)

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Solution for 18*18=12*(12+x) equation: 


Simplifying
18 * 18 = 12(12 + x)

Multiply 18 * 18
324 = 12(12 + x)
324 = (12 * 12 + x * 12)
324 = (144 + 12x)

Solving
324 = 144 + 12x

Solving for variable 'x'.

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

Add '-12x' to each side of the equation.
324 + -12x = 144 + 12x + -12x

Combine like terms: 12x + -12x = 0
324 + -12x = 144 + 0
324 + -12x = 144

Add '-324' to each side of the equation.
324 + -324 + -12x = 144 + -324

Combine like terms: 324 + -324 = 0
0 + -12x = 144 + -324
-12x = 144 + -324

Combine like terms: 144 + -324 = -180
-12x = -180

Divide each side by '-12'.
x = 15

Simplifying
x = 15

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