-15=-3(a+2)

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


Simplifying
-15 = -3(a + 2)

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

Solving
-15 = -6 + -3a

Solving for variable 'a'.

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

Add '3a' to each side of the equation.
-15 + 3a = -6 + -3a + 3a

Combine like terms: -3a + 3a = 0
-15 + 3a = -6 + 0
-15 + 3a = -6

Add '15' to each side of the equation.
-15 + 15 + 3a = -6 + 15

Combine like terms: -15 + 15 = 0
0 + 3a = -6 + 15
3a = -6 + 15

Combine like terms: -6 + 15 = 9
3a = 9

Divide each side by '3'.
a = 3

Simplifying
a = 3

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