-3x-21+2=20

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Solution for -3x-21+2=20 equation:


Simplifying
-3x + -21 + 2 = 20

Reorder the terms:
-21 + 2 + -3x = 20

Combine like terms: -21 + 2 = -19
-19 + -3x = 20

Solving
-19 + -3x = 20

Solving for variable 'x'.

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

Add '19' to each side of the equation.
-19 + 19 + -3x = 20 + 19

Combine like terms: -19 + 19 = 0
0 + -3x = 20 + 19
-3x = 20 + 19

Combine like terms: 20 + 19 = 39
-3x = 39

Divide each side by '-3'.
x = -13

Simplifying
x = -13

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