-21-8a=-5a-1

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Solution for -21-8a=-5a-1 equation:


Simplifying
-21 + -8a = -5a + -1

Reorder the terms:
-21 + -8a = -1 + -5a

Solving
-21 + -8a = -1 + -5a

Solving for variable 'a'.

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

Add '5a' to each side of the equation.
-21 + -8a + 5a = -1 + -5a + 5a

Combine like terms: -8a + 5a = -3a
-21 + -3a = -1 + -5a + 5a

Combine like terms: -5a + 5a = 0
-21 + -3a = -1 + 0
-21 + -3a = -1

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

Combine like terms: -21 + 21 = 0
0 + -3a = -1 + 21
-3a = -1 + 21

Combine like terms: -1 + 21 = 20
-3a = 20

Divide each side by '-3'.
a = -6.666666667

Simplifying
a = -6.666666667

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