3(13-2a)=-3

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Solution for 3(13-2a)=-3 equation: 


Simplifying
3(13 + -2a) = -3
(13 * 3 + -2a * 3) = -3
(39 + -6a) = -3

Solving
39 + -6a = -3

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 = -3 + -39

Combine like terms: 39 + -39 = 0
0 + -6a = -3 + -39
-6a = -3 + -39

Combine like terms: -3 + -39 = -42
-6a = -42

Divide each side by '-6'.
a = 7

Simplifying
a = 7

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