(3x+21)=(2x-8)+1

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Solution for (3x+21)=(2x-8)+1 equation:


Simplifying
(3x + 21) = (2x + -8) + 1

Reorder the terms:
(21 + 3x) = (2x + -8) + 1

Remove parenthesis around (21 + 3x)
21 + 3x = (2x + -8) + 1

Reorder the terms:
21 + 3x = (-8 + 2x) + 1

Remove parenthesis around (-8 + 2x)
21 + 3x = -8 + 2x + 1

Reorder the terms:
21 + 3x = -8 + 1 + 2x

Combine like terms: -8 + 1 = -7
21 + 3x = -7 + 2x

Solving
21 + 3x = -7 + 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 + 3x + -2x = -7 + 2x + -2x

Combine like terms: 3x + -2x = 1x
21 + 1x = -7 + 2x + -2x

Combine like terms: 2x + -2x = 0
21 + 1x = -7 + 0
21 + 1x = -7

Add '-21' to each side of the equation.
21 + -21 + 1x = -7 + -21

Combine like terms: 21 + -21 = 0
0 + 1x = -7 + -21
1x = -7 + -21

Combine like terms: -7 + -21 = -28
1x = -28

Divide each side by '1'.
x = -28

Simplifying
x = -28

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