23=(5+2x)2-7

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Solution for 23=(5+2x)2-7 equation:


Simplifying
23 = (5 + 2x) * 2 + -7

Reorder the terms for easier multiplication:
23 = 2(5 + 2x) + -7
23 = (5 * 2 + 2x * 2) + -7
23 = (10 + 4x) + -7

Reorder the terms:
23 = 10 + -7 + 4x

Combine like terms: 10 + -7 = 3
23 = 3 + 4x

Solving
23 = 3 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
23 + -4x = 3 + 4x + -4x

Combine like terms: 4x + -4x = 0
23 + -4x = 3 + 0
23 + -4x = 3

Add '-23' to each side of the equation.
23 + -23 + -4x = 3 + -23

Combine like terms: 23 + -23 = 0
0 + -4x = 3 + -23
-4x = 3 + -23

Combine like terms: 3 + -23 = -20
-4x = -20

Divide each side by '-4'.
x = 5

Simplifying
x = 5

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