5x+5-8=3x+21

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Solution for 5x+5-8=3x+21 equation:


Simplifying
5x + 5 + -8 = 3x + 21

Reorder the terms:
5 + -8 + 5x = 3x + 21

Combine like terms: 5 + -8 = -3
-3 + 5x = 3x + 21

Reorder the terms:
-3 + 5x = 21 + 3x

Solving
-3 + 5x = 21 + 3x

Solving for variable 'x'.

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

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

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

Combine like terms: 3x + -3x = 0
-3 + 2x = 21 + 0
-3 + 2x = 21

Add '3' to each side of the equation.
-3 + 3 + 2x = 21 + 3

Combine like terms: -3 + 3 = 0
0 + 2x = 21 + 3
2x = 21 + 3

Combine like terms: 21 + 3 = 24
2x = 24

Divide each side by '2'.
x = 12

Simplifying
x = 12

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