-x+7+3x=3(x+4)

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Solution for -x+7+3x=3(x+4) equation:


Simplifying
-1x + 7 + 3x = 3(x + 4)

Reorder the terms:
7 + -1x + 3x = 3(x + 4)

Combine like terms: -1x + 3x = 2x
7 + 2x = 3(x + 4)

Reorder the terms:
7 + 2x = 3(4 + x)
7 + 2x = (4 * 3 + x * 3)
7 + 2x = (12 + 3x)

Solving
7 + 2x = 12 + 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
7 + 2x + -3x = 12 + 3x + -3x

Combine like terms: 2x + -3x = -1x
7 + -1x = 12 + 3x + -3x

Combine like terms: 3x + -3x = 0
7 + -1x = 12 + 0
7 + -1x = 12

Add '-7' to each side of the equation.
7 + -7 + -1x = 12 + -7

Combine like terms: 7 + -7 = 0
0 + -1x = 12 + -7
-1x = 12 + -7

Combine like terms: 12 + -7 = 5
-1x = 5

Divide each side by '-1'.
x = -5

Simplifying
x = -5

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