-11x-7x=9x+21

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Solution for -11x-7x=9x+21 equation:


Simplifying
-11x + -7x = 9x + 21

Combine like terms: -11x + -7x = -18x
-18x = 9x + 21

Reorder the terms:
-18x = 21 + 9x

Solving
-18x = 21 + 9x

Solving for variable 'x'.

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

Add '-9x' to each side of the equation.
-18x + -9x = 21 + 9x + -9x

Combine like terms: -18x + -9x = -27x
-27x = 21 + 9x + -9x

Combine like terms: 9x + -9x = 0
-27x = 21 + 0
-27x = 21

Divide each side by '-27'.
x = -0.7777777778

Simplifying
x = -0.7777777778

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