-3x+21=-3

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


Simplifying
-3x + 21 = -3

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

Solving
21 + -3x = -3

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 = -3 + -21

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

Combine like terms: -3 + -21 = -24
-3x = -24

Divide each side by '-3'.
x = 8

Simplifying
x = 8

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