(x+3)2-4=18

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Solution for (x+3)2-4=18 equation:


Simplifying
(x + 3) * 2 + -4 = 18

Reorder the terms:
(3 + x) * 2 + -4 = 18

Reorder the terms for easier multiplication:
2(3 + x) + -4 = 18
(3 * 2 + x * 2) + -4 = 18
(6 + 2x) + -4 = 18

Reorder the terms:
6 + -4 + 2x = 18

Combine like terms: 6 + -4 = 2
2 + 2x = 18

Solving
2 + 2x = 18

Solving for variable 'x'.

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

Add '-2' to each side of the equation.
2 + -2 + 2x = 18 + -2

Combine like terms: 2 + -2 = 0
0 + 2x = 18 + -2
2x = 18 + -2

Combine like terms: 18 + -2 = 16
2x = 16

Divide each side by '2'.
x = 8

Simplifying
x = 8

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