-105-9x=9x+21

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Solution for -105-9x=9x+21 equation:


Simplifying
-105 + -9x = 9x + 21

Reorder the terms:
-105 + -9x = 21 + 9x

Solving
-105 + -9x = 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.
-105 + -9x + -9x = 21 + 9x + -9x

Combine like terms: -9x + -9x = -18x
-105 + -18x = 21 + 9x + -9x

Combine like terms: 9x + -9x = 0
-105 + -18x = 21 + 0
-105 + -18x = 21

Add '105' to each side of the equation.
-105 + 105 + -18x = 21 + 105

Combine like terms: -105 + 105 = 0
0 + -18x = 21 + 105
-18x = 21 + 105

Combine like terms: 21 + 105 = 126
-18x = 126

Divide each side by '-18'.
x = -7

Simplifying
x = -7

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