-4a+8+3a-9=

Solution for -4a+8+3a-9= equation:

Simplifying
-4a + 8 + 3a + -9 = 0

Reorder the terms:
8 + -9 + -4a + 3a = 0

Combine like terms: 8 + -9 = -1
-1 + -4a + 3a = 0

Combine like terms: -4a + 3a = -1a
-1 + -1a = 0

Solving
-1 + -1a = 0

Solving for variable 'a'.

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

Add '1' to each side of the equation.
-1 + 1 + -1a = 0 + 1

Combine like terms: -1 + 1 = 0
0 + -1a = 0 + 1
-1a = 0 + 1

Combine like terms: 0 + 1 = 1
-1a = 1

Divide each side by '-1'.
a = -1

Simplifying
a = -1