3(5+x)=23+x

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Solution for 3(5+x)=23+x equation:


Simplifying
3(5 + x) = 23 + x
(5 * 3 + x * 3) = 23 + x
(15 + 3x) = 23 + x

Solving
15 + 3x = 23 + 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 = 23 + x + -1x

Combine like terms: 3x + -1x = 2x
15 + 2x = 23 + x + -1x

Combine like terms: x + -1x = 0
15 + 2x = 23 + 0
15 + 2x = 23

Add '-15' to each side of the equation.
15 + -15 + 2x = 23 + -15

Combine like terms: 15 + -15 = 0
0 + 2x = 23 + -15
2x = 23 + -15

Combine like terms: 23 + -15 = 8
2x = 8

Divide each side by '2'.
x = 4

Simplifying
x = 4

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