2a+4b-5a+8b-1=

Solution for 2a+4b-5a+8b-1= equation:

Simplifying
2a + 4b + -5a + 8b + -1 = 0

Reorder the terms:
-1 + 2a + -5a + 4b + 8b = 0

Combine like terms: 2a + -5a = -3a
-1 + -3a + 4b + 8b = 0

Combine like terms: 4b + 8b = 12b
-1 + -3a + 12b = 0

Solving
-1 + -3a + 12b = 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 + -3a + 1 + 12b = 0 + 1

Reorder the terms:
-1 + 1 + -3a + 12b = 0 + 1

Combine like terms: -1 + 1 = 0
0 + -3a + 12b = 0 + 1
-3a + 12b = 0 + 1

Combine like terms: 0 + 1 = 1
-3a + 12b = 1

Add '-12b' to each side of the equation.
-3a + 12b + -12b = 1 + -12b

Combine like terms: 12b + -12b = 0
-3a + 0 = 1 + -12b
-3a = 1 + -12b

Divide each side by '-3'.
a = -0.3333333333 + 4b

Simplifying
a = -0.3333333333 + 4b