3(x+4)-(-x)=4

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


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

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

Remove parenthesis around (-1x)
12 + 3x + -1 * -1x = 4

Multiply -1 * -1
12 + 3x + 1x = 4

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

Solving
12 + 4x = 4

Solving for variable 'x'.

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

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

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

Combine like terms: 4 + -12 = -8
4x = -8

Divide each side by '4'.
x = -2

Simplifying
x = -2

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