3x+5-x=8+4x+7

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Solution for 3x+5-x=8+4x+7 equation:


Simplifying
3x + 5 + -1x = 8 + 4x + 7

Reorder the terms:
5 + 3x + -1x = 8 + 4x + 7

Combine like terms: 3x + -1x = 2x
5 + 2x = 8 + 4x + 7

Reorder the terms:
5 + 2x = 8 + 7 + 4x

Combine like terms: 8 + 7 = 15
5 + 2x = 15 + 4x

Solving
5 + 2x = 15 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
5 + 2x + -4x = 15 + 4x + -4x

Combine like terms: 2x + -4x = -2x
5 + -2x = 15 + 4x + -4x

Combine like terms: 4x + -4x = 0
5 + -2x = 15 + 0
5 + -2x = 15

Add '-5' to each side of the equation.
5 + -5 + -2x = 15 + -5

Combine like terms: 5 + -5 = 0
0 + -2x = 15 + -5
-2x = 15 + -5

Combine like terms: 15 + -5 = 10
-2x = 10

Divide each side by '-2'.
x = -5

Simplifying
x = -5

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