-21=3x-x+1

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Solution for -21=3x-x+1 equation:


Simplifying
-21 = 3x + -1x + 1

Reorder the terms:
-21 = 1 + 3x + -1x

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

Solving
-21 = 1 + 2x

Solving for variable 'x'.

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

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

Combine like terms: 2x + -2x = 0
-21 + -2x = 1 + 0
-21 + -2x = 1

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

Combine like terms: -21 + 21 = 0
0 + -2x = 1 + 21
-2x = 1 + 21

Combine like terms: 1 + 21 = 22
-2x = 22

Divide each side by '-2'.
x = -11

Simplifying
x = -11

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