-3x+21=-6

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Solution for -3x+21=-6 equation: 


Simplifying
-3x + 21 = -6

Reorder the terms:
21 + -3x = -6

Solving
21 + -3x = -6

Solving for variable 'x'.

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

Add '-21' to each side of the equation.
21 + -21 + -3x = -6 + -21

Combine like terms: 21 + -21 = 0
0 + -3x = -6 + -21
-3x = -6 + -21

Combine like terms: -6 + -21 = -27
-3x = -27

Divide each side by '-3'.
x = 9

Simplifying
x = 9

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