-5x-8=21

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Solution for -5x-8=21 equation: 


Simplifying
-5x + -8 = 21

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

Solving
-8 + -5x = 21

Solving for variable 'x'.

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

Add '8' to each side of the equation.
-8 + 8 + -5x = 21 + 8

Combine like terms: -8 + 8 = 0
0 + -5x = 21 + 8
-5x = 21 + 8

Combine like terms: 21 + 8 = 29
-5x = 29

Divide each side by '-5'.
x = -5.8

Simplifying
x = -5.8

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