8a-15=13

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Solution for 8a-15=13 equation: 


Simplifying
8a + -15 = 13

Reorder the terms:
-15 + 8a = 13

Solving
-15 + 8a = 13

Solving for variable 'a'.

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

Add '15' to each side of the equation.
-15 + 15 + 8a = 13 + 15

Combine like terms: -15 + 15 = 0
0 + 8a = 13 + 15
8a = 13 + 15

Combine like terms: 13 + 15 = 28
8a = 28

Divide each side by '8'.
a = 3.5

Simplifying
a = 3.5

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