6x+6(x-9)=90

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Solution for 6x+6(x-9)=90 equation:


Simplifying
6x + 6(x + -9) = 90

Reorder the terms:
6x + 6(-9 + x) = 90
6x + (-9 * 6 + x * 6) = 90
6x + (-54 + 6x) = 90

Reorder the terms:
-54 + 6x + 6x = 90

Combine like terms: 6x + 6x = 12x
-54 + 12x = 90

Solving
-54 + 12x = 90

Solving for variable 'x'.

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

Add '54' to each side of the equation.
-54 + 54 + 12x = 90 + 54

Combine like terms: -54 + 54 = 0
0 + 12x = 90 + 54
12x = 90 + 54

Combine like terms: 90 + 54 = 144
12x = 144

Divide each side by '12'.
x = 12

Simplifying
x = 12

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