3x-x+7+1=3x+9

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Solution for 3x-x+7+1=3x+9 equation: 


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

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

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

Combine like terms: 3x + -1x = 2x
8 + 2x = 3x + 9

Reorder the terms:
8 + 2x = 9 + 3x

Solving
8 + 2x = 9 + 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.
8 + 2x + -3x = 9 + 3x + -3x

Combine like terms: 2x + -3x = -1x
8 + -1x = 9 + 3x + -3x

Combine like terms: 3x + -3x = 0
8 + -1x = 9 + 0
8 + -1x = 9

Add '-8' to each side of the equation.
8 + -8 + -1x = 9 + -8

Combine like terms: 8 + -8 = 0
0 + -1x = 9 + -8
-1x = 9 + -8

Combine like terms: 9 + -8 = 1
-1x = 1

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

Simplifying
x = -1

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