9x-21=15+11x

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Solution for 9x-21=15+11x equation:


Simplifying
9x + -21 = 15 + 11x

Reorder the terms:
-21 + 9x = 15 + 11x

Solving
-21 + 9x = 15 + 11x

Solving for variable 'x'.

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

Add '-11x' to each side of the equation.
-21 + 9x + -11x = 15 + 11x + -11x

Combine like terms: 9x + -11x = -2x
-21 + -2x = 15 + 11x + -11x

Combine like terms: 11x + -11x = 0
-21 + -2x = 15 + 0
-21 + -2x = 15

Add '21' to each side of the equation.
-21 + 21 + -2x = 15 + 21

Combine like terms: -21 + 21 = 0
0 + -2x = 15 + 21
-2x = 15 + 21

Combine like terms: 15 + 21 = 36
-2x = 36

Divide each side by '-2'.
x = -18

Simplifying
x = -18

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