3(2a+5)=-15

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Solution for 3(2a+5)=-15 equation: 


Simplifying
3(2a + 5) = -15

Reorder the terms:
3(5 + 2a) = -15
(5 * 3 + 2a * 3) = -15
(15 + 6a) = -15

Solving
15 + 6a = -15

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 + 6a = -15 + -15

Combine like terms: 15 + -15 = 0
0 + 6a = -15 + -15
6a = -15 + -15

Combine like terms: -15 + -15 = -30
6a = -30

Divide each side by '6'.
a = -5

Simplifying
a = -5

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