3x-7=9+x

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


Simplifying
3x + -7 = 9 + x

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

Solving
-7 + 3x = 9 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
-7 + 3x + -1x = 9 + x + -1x

Combine like terms: 3x + -1x = 2x
-7 + 2x = 9 + x + -1x

Combine like terms: x + -1x = 0
-7 + 2x = 9 + 0
-7 + 2x = 9

Add '7' to each side of the equation.
-7 + 7 + 2x = 9 + 7

Combine like terms: -7 + 7 = 0
0 + 2x = 9 + 7
2x = 9 + 7

Combine like terms: 9 + 7 = 16
2x = 16

Divide each side by '2'.
x = 8

Simplifying
x = 8

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