4a+6b+3+9a-3b-1=

Solution for 4a+6b+3+9a-3b-1= equation:

Simplifying
4a + 6b + 3 + 9a + -3b + -1 = 0

Reorder the terms:
3 + -1 + 4a + 9a + 6b + -3b = 0

Combine like terms: 3 + -1 = 2
2 + 4a + 9a + 6b + -3b = 0

Combine like terms: 4a + 9a = 13a
2 + 13a + 6b + -3b = 0

Combine like terms: 6b + -3b = 3b
2 + 13a + 3b = 0

Solving
2 + 13a + 3b = 0

Solving for variable 'a'.

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

Add '-2' to each side of the equation.
2 + 13a + -2 + 3b = 0 + -2

Reorder the terms:
2 + -2 + 13a + 3b = 0 + -2

Combine like terms: 2 + -2 = 0
0 + 13a + 3b = 0 + -2
13a + 3b = 0 + -2

Combine like terms: 0 + -2 = -2
13a + 3b = -2

Add '-3b' to each side of the equation.
13a + 3b + -3b = -2 + -3b

Combine like terms: 3b + -3b = 0
13a + 0 = -2 + -3b
13a = -2 + -3b

Divide each side by '13'.
a = -0.1538461538 + -0.2307692308b

Simplifying
a = -0.1538461538 + -0.2307692308b