9-x=3x+7

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


Simplifying
9 + -1x = 3x + 7

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

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

Combine like terms: -1x + -3x = -4x
9 + -4x = 7 + 3x + -3x

Combine like terms: 3x + -3x = 0
9 + -4x = 7 + 0
9 + -4x = 7

Add '-9' to each side of the equation.
9 + -9 + -4x = 7 + -9

Combine like terms: 9 + -9 = 0
0 + -4x = 7 + -9
-4x = 7 + -9

Combine like terms: 7 + -9 = -2
-4x = -2

Divide each side by '-4'.
x = 0.5

Simplifying
x = 0.5

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