3(2a+13)=57

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Solution for 3(2a+13)=57 equation: 


Simplifying
3(2a + 13) = 57

Reorder the terms:
3(13 + 2a) = 57
(13 * 3 + 2a * 3) = 57
(39 + 6a) = 57

Solving
39 + 6a = 57

Solving for variable 'a'.

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

Add '-39' to each side of the equation.
39 + -39 + 6a = 57 + -39

Combine like terms: 39 + -39 = 0
0 + 6a = 57 + -39
6a = 57 + -39

Combine like terms: 57 + -39 = 18
6a = 18

Divide each side by '6'.
a = 3

Simplifying
a = 3

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