13a-15=28

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Solution for 13a-15=28 equation: 


Simplifying
13a + -15 = 28

Reorder the terms:
-15 + 13a = 28

Solving
-15 + 13a = 28

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 + 13a = 28 + 15

Combine like terms: -15 + 15 = 0
0 + 13a = 28 + 15
13a = 28 + 15

Combine like terms: 28 + 15 = 43
13a = 43

Divide each side by '13'.
a = 3.307692308

Simplifying
a = 3.307692308

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