3x+21-6x=4-1x+1

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Solution for 3x+21-6x=4-1x+1 equation: 


Simplifying
3x + 21 + -6x = 4 + -1x + 1

Reorder the terms:
21 + 3x + -6x = 4 + -1x + 1

Combine like terms: 3x + -6x = -3x
21 + -3x = 4 + -1x + 1

Reorder the terms:
21 + -3x = 4 + 1 + -1x

Combine like terms: 4 + 1 = 5
21 + -3x = 5 + -1x

Solving
21 + -3x = 5 + -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
21 + -3x + x = 5 + -1x + x

Combine like terms: -3x + x = -2x
21 + -2x = 5 + -1x + x

Combine like terms: -1x + x = 0
21 + -2x = 5 + 0
21 + -2x = 5

Add '-21' to each side of the equation.
21 + -21 + -2x = 5 + -21

Combine like terms: 21 + -21 = 0
0 + -2x = 5 + -21
-2x = 5 + -21

Combine like terms: 5 + -21 = -16
-2x = -16

Divide each side by '-2'.
x = 8

Simplifying
x = 8

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