4x-2(-4x+9)=66

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Solution for 4x-2(-4x+9)=66 equation:


Simplifying
4x + -2(-4x + 9) = 66

Reorder the terms:
4x + -2(9 + -4x) = 66
4x + (9 * -2 + -4x * -2) = 66
4x + (-18 + 8x) = 66

Reorder the terms:
-18 + 4x + 8x = 66

Combine like terms: 4x + 8x = 12x
-18 + 12x = 66

Solving
-18 + 12x = 66

Solving for variable 'x'.

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

Add '18' to each side of the equation.
-18 + 18 + 12x = 66 + 18

Combine like terms: -18 + 18 = 0
0 + 12x = 66 + 18
12x = 66 + 18

Combine like terms: 66 + 18 = 84
12x = 84

Divide each side by '12'.
x = 7

Simplifying
x = 7

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