-2x-66=x+21

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Solution for -2x-66=x+21 equation:


Simplifying
-2x + -66 = x + 21

Reorder the terms:
-66 + -2x = x + 21

Reorder the terms:
-66 + -2x = 21 + x

Solving
-66 + -2x = 21 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
-66 + -2x + -1x = 21 + x + -1x

Combine like terms: -2x + -1x = -3x
-66 + -3x = 21 + x + -1x

Combine like terms: x + -1x = 0
-66 + -3x = 21 + 0
-66 + -3x = 21

Add '66' to each side of the equation.
-66 + 66 + -3x = 21 + 66

Combine like terms: -66 + 66 = 0
0 + -3x = 21 + 66
-3x = 21 + 66

Combine like terms: 21 + 66 = 87
-3x = 87

Divide each side by '-3'.
x = -29

Simplifying
x = -29

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