5-13+3a=13

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Solution for 5-13+3a=13 equation: 


Simplifying
5 + -13 + 3a = 13

Combine like terms: 5 + -13 = -8
-8 + 3a = 13

Solving
-8 + 3a = 13

Solving for variable 'a'.

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

Add '8' to each side of the equation.
-8 + 8 + 3a = 13 + 8

Combine like terms: -8 + 8 = 0
0 + 3a = 13 + 8
3a = 13 + 8

Combine like terms: 13 + 8 = 21
3a = 21

Divide each side by '3'.
a = 7

Simplifying
a = 7

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