3a+2b-4a+9b=

Solution for 3a+2b-4a+9b= equation:

Simplifying
3a + 2b + -4a + 9b = 0

Reorder the terms:
3a + -4a + 2b + 9b = 0

Combine like terms: 3a + -4a = -1a
-1a + 2b + 9b = 0

Combine like terms: 2b + 9b = 11b
-1a + 11b = 0

Solving
-1a + 11b = 0

Solving for variable 'a'.

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

Add '-11b' to each side of the equation.
-1a + 11b + -11b = 0 + -11b

Combine like terms: 11b + -11b = 0
-1a + 0 = 0 + -11b
-1a = 0 + -11b
Remove the zero:
-1a = -11b

Divide each side by '-1'.
a = 11b

Simplifying
a = 11b