3(x+1)=15-x

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Solution for 3(x+1)=15-x equation:


Simplifying
3(x + 1) = 15 + -1x

Reorder the terms:
3(1 + x) = 15 + -1x
(1 * 3 + x * 3) = 15 + -1x
(3 + 3x) = 15 + -1x

Solving
3 + 3x = 15 + -1x

Solving for variable 'x'.

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

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

Combine like terms: 3x + x = 4x
3 + 4x = 15 + -1x + x

Combine like terms: -1x + x = 0
3 + 4x = 15 + 0
3 + 4x = 15

Add '-3' to each side of the equation.
3 + -3 + 4x = 15 + -3

Combine like terms: 3 + -3 = 0
0 + 4x = 15 + -3
4x = 15 + -3

Combine like terms: 15 + -3 = 12
4x = 12

Divide each side by '4'.
x = 3

Simplifying
x = 3

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