-72=4(-4a-3)

Solution for -72=4(-4a-3) equation:

Simplifying
-72 = 4(-4a + -3)

Reorder the terms:
-72 = 4(-3 + -4a)
-72 = (-3 * 4 + -4a * 4)
-72 = (-12 + -16a)

Solving
-72 = -12 + -16a

Solving for variable 'a'.

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

Add '16a' to each side of the equation.
-72 + 16a = -12 + -16a + 16a

Combine like terms: -16a + 16a = 0
-72 + 16a = -12 + 0
-72 + 16a = -12

Add '72' to each side of the equation.
-72 + 72 + 16a = -12 + 72

Combine like terms: -72 + 72 = 0
0 + 16a = -12 + 72
16a = -12 + 72

Combine like terms: -12 + 72 = 60
16a = 60

Divide each side by '16'.
a = 3.75

Simplifying
a = 3.75