X+7+9-x+3x=8

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Solution for X+7+9-x+3x=8 equation: 


Simplifying
X + 7 + 9 + -1x + 3x = 8

Reorder the terms:
7 + 9 + X + -1x + 3x = 8

Combine like terms: 7 + 9 = 16
16 + X + -1x + 3x = 8

Combine like terms: -1x + 3x = 2x
16 + X + 2x = 8

Solving
16 + X + 2x = 8

Solving for variable 'X'.

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

Add '-16' to each side of the equation.
16 + X + -16 + 2x = 8 + -16

Reorder the terms:
16 + -16 + X + 2x = 8 + -16

Combine like terms: 16 + -16 = 0
0 + X + 2x = 8 + -16
X + 2x = 8 + -16

Combine like terms: 8 + -16 = -8
X + 2x = -8

Add '-2x' to each side of the equation.
X + 2x + -2x = -8 + -2x

Combine like terms: 2x + -2x = 0
X + 0 = -8 + -2x
X = -8 + -2x

Simplifying
X = -8 + -2x

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