-6-21=-9x+9

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Solution for -6-21=-9x+9 equation:


Simplifying
-6 + -21 = -9x + 9

Combine like terms: -6 + -21 = -27
-27 = -9x + 9

Reorder the terms:
-27 = 9 + -9x

Solving
-27 = 9 + -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.
-27 + 9x = 9 + -9x + 9x

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

Add '27' to each side of the equation.
-27 + 27 + 9x = 9 + 27

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

Combine like terms: 9 + 27 = 36
9x = 36

Divide each side by '9'.
x = 4

Simplifying
x = 4

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