(5+x)3=31+x

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Solution for (5+x)3=31+x equation:


Simplifying
(5 + x) * 3 = 31 + x

Reorder the terms for easier multiplication:
3(5 + x) = 31 + x
(5 * 3 + x * 3) = 31 + x
(15 + 3x) = 31 + x

Solving
15 + 3x = 31 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
15 + 3x + -1x = 31 + x + -1x

Combine like terms: 3x + -1x = 2x
15 + 2x = 31 + x + -1x

Combine like terms: x + -1x = 0
15 + 2x = 31 + 0
15 + 2x = 31

Add '-15' to each side of the equation.
15 + -15 + 2x = 31 + -15

Combine like terms: 15 + -15 = 0
0 + 2x = 31 + -15
2x = 31 + -15

Combine like terms: 31 + -15 = 16
2x = 16

Divide each side by '2'.
x = 8

Simplifying
x = 8

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