b-4c+3a-c-9b-4a=

Solution for b-4c+3a-c-9b-4a= equation:

Simplifying
b + -4c + 3a + -1c + -9b + -4a = 0

Reorder the terms:
3a + -4a + b + -9b + -4c + -1c = 0

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

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

Combine like terms: -4c + -1c = -5c
-1a + -8b + -5c = 0

Solving
-1a + -8b + -5c = 0

Solving for variable 'a'.

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

Add '8b' to each side of the equation.
-1a + -8b + 8b + -5c = 0 + 8b

Combine like terms: -8b + 8b = 0
-1a + 0 + -5c = 0 + 8b
-1a + -5c = 0 + 8b
Remove the zero:
-1a + -5c = 8b

Add '5c' to each side of the equation.
-1a + -5c + 5c = 8b + 5c

Combine like terms: -5c + 5c = 0
-1a + 0 = 8b + 5c
-1a = 8b + 5c

Divide each side by '-1'.
a = -8b + -5c

Simplifying
a = -8b + -5c