3(a+7)=-6

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Solution for 3(a+7)=-6 equation: 


Simplifying
3(a + 7) = -6

Reorder the terms:
3(7 + a) = -6
(7 * 3 + a * 3) = -6
(21 + 3a) = -6

Solving
21 + 3a = -6

Solving for variable 'a'.

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

Add '-21' to each side of the equation.
21 + -21 + 3a = -6 + -21

Combine like terms: 21 + -21 = 0
0 + 3a = -6 + -21
3a = -6 + -21

Combine like terms: -6 + -21 = -27
3a = -27

Divide each side by '3'.
a = -9

Simplifying
a = -9

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