6-3(a+5)=-3

Solution for 6-3(a+5)=-3 equation:

Simplifying
6 + -3(a + 5) = -3

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

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

Solving
-9 + -3a = -3

Solving for variable 'a'.

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

Add '9' to each side of the equation.
-9 + 9 + -3a = -3 + 9

Combine like terms: -9 + 9 = 0
0 + -3a = -3 + 9
-3a = -3 + 9

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

Divide each side by '-3'.
a = -2

Simplifying
a = -2