-21=9a-1513a

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Solution for -21=9a-1513a equation:


Simplifying
-21 = 9a + -1513a

Combine like terms: 9a + -1513a = -1504a
-21 = -1504a

Solving
-21 = -1504a

Solving for variable 'a'.

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

Add '1504a' to each side of the equation.
-21 + 1504a = -1504a + 1504a

Combine like terms: -1504a + 1504a = 0
-21 + 1504a = 0

Add '21' to each side of the equation.
-21 + 21 + 1504a = 0 + 21

Combine like terms: -21 + 21 = 0
0 + 1504a = 0 + 21
1504a = 0 + 21

Combine like terms: 0 + 21 = 21
1504a = 21

Divide each side by '1504'.
a = 0.01396276596

Simplifying
a = 0.01396276596

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