3(x+4)=18-x

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


Simplifying
3(x + 4) = 18 + -1x

Reorder the terms:
3(4 + x) = 18 + -1x
(4 * 3 + x * 3) = 18 + -1x
(12 + 3x) = 18 + -1x

Solving
12 + 3x = 18 + -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.
12 + 3x + x = 18 + -1x + x

Combine like terms: 3x + x = 4x
12 + 4x = 18 + -1x + x

Combine like terms: -1x + x = 0
12 + 4x = 18 + 0
12 + 4x = 18

Add '-12' to each side of the equation.
12 + -12 + 4x = 18 + -12

Combine like terms: 12 + -12 = 0
0 + 4x = 18 + -12
4x = 18 + -12

Combine like terms: 18 + -12 = 6
4x = 6

Divide each side by '4'.
x = 1.5

Simplifying
x = 1.5

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