-7b-9ac+4b=

Solution for -7b-9ac+4b= equation:

Simplifying
-7b + -9ac + 4b = 0

Reorder the terms:
-9ac + -7b + 4b = 0

Combine like terms: -7b + 4b = -3b
-9ac + -3b = 0

Solving
-9ac + -3b = 0

Solving for variable 'a'.

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

Add '3b' to each side of the equation.
-9ac + -3b + 3b = 0 + 3b

Combine like terms: -3b + 3b = 0
-9ac + 0 = 0 + 3b
-9ac = 0 + 3b
Remove the zero:
-9ac = 3b

Divide each side by '-9c'.
a = -0.3333333333bc-1

Simplifying
a = -0.3333333333bc-1