-4a+20a+144=

Solution for -4a+20a+144= equation:

Simplifying
-4a + 20a + 144 = 0

Reorder the terms:
144 + -4a + 20a = 0

Combine like terms: -4a + 20a = 16a
144 + 16a = 0

Solving
144 + 16a = 0

Solving for variable 'a'.

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

Add '-144' to each side of the equation.
144 + -144 + 16a = 0 + -144

Combine like terms: 144 + -144 = 0
0 + 16a = 0 + -144
16a = 0 + -144

Combine like terms: 0 + -144 = -144
16a = -144

Divide each side by '16'.
a = -9

Simplifying
a = -9