x-3x+9=7

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


Simplifying
x + -3x + 9 = 7

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

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

Solving
9 + -2x = 7

Solving for variable 'x'.

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

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

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

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

Divide each side by '-2'.
x = 1

Simplifying
x = 1

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