4(x+3)2-4=12

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Solution for 4(x+3)2-4=12 equation:


Simplifying
4(x + 3) * 2 + -4 = 12

Reorder the terms:
4(3 + x) * 2 + -4 = 12

Reorder the terms for easier multiplication:
4 * 2(3 + x) + -4 = 12

Multiply 4 * 2
8(3 + x) + -4 = 12
(3 * 8 + x * 8) + -4 = 12
(24 + 8x) + -4 = 12

Reorder the terms:
24 + -4 + 8x = 12

Combine like terms: 24 + -4 = 20
20 + 8x = 12

Solving
20 + 8x = 12

Solving for variable 'x'.

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

Add '-20' to each side of the equation.
20 + -20 + 8x = 12 + -20

Combine like terms: 20 + -20 = 0
0 + 8x = 12 + -20
8x = 12 + -20

Combine like terms: 12 + -20 = -8
8x = -8

Divide each side by '8'.
x = -1

Simplifying
x = -1

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