23-9x+7x=21

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Solution for 23-9x+7x=21 equation: 


Simplifying
23 + -9x + 7x = 21

Combine like terms: -9x + 7x = -2x
23 + -2x = 21

Solving
23 + -2x = 21

Solving for variable 'x'.

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

Add '-23' to each side of the equation.
23 + -23 + -2x = 21 + -23

Combine like terms: 23 + -23 = 0
0 + -2x = 21 + -23
-2x = 21 + -23

Combine like terms: 21 + -23 = -2
-2x = -2

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

Simplifying
x = 1

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