3(6a-7)=-111

Solution for 3(6a-7)=-111 equation:

Simplifying
3(6a + -7) = -111

Reorder the terms:
3(-7 + 6a) = -111
(-7 * 3 + 6a * 3) = -111
(-21 + 18a) = -111

Solving
-21 + 18a = -111

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 + 18a = -111 + 21

Combine like terms: -21 + 21 = 0
0 + 18a = -111 + 21
18a = -111 + 21

Combine like terms: -111 + 21 = -90
18a = -90

Divide each side by '18'.
a = -5

Simplifying
a = -5