4a+5b-a+2b=

Solution for 4a+5b-a+2b= equation:

Simplifying
4a + 5b + -1a + 2b = 0

Reorder the terms:
4a + -1a + 5b + 2b = 0

Combine like terms: 4a + -1a = 3a
3a + 5b + 2b = 0

Combine like terms: 5b + 2b = 7b
3a + 7b = 0

Solving
3a + 7b = 0

Solving for variable 'a'.

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

Add '-7b' to each side of the equation.
3a + 7b + -7b = 0 + -7b

Combine like terms: 7b + -7b = 0
3a + 0 = 0 + -7b
3a = 0 + -7b
Remove the zero:
3a = -7b

Divide each side by '3'.
a = -2.333333333b

Simplifying
a = -2.333333333b