6(a+b)+a+3b=

Solution for 6(a+b)+a+3b= equation:

Simplifying
6(a + b) + a + 3b = 0
(a * 6 + b * 6) + a + 3b = 0
(6a + 6b) + a + 3b = 0

Reorder the terms:
6a + a + 6b + 3b = 0

Combine like terms: 6a + a = 7a
7a + 6b + 3b = 0

Combine like terms: 6b + 3b = 9b
7a + 9b = 0

Solving
7a + 9b = 0

Solving for variable 'a'.

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

Add '-9b' to each side of the equation.
7a + 9b + -9b = 0 + -9b

Combine like terms: 9b + -9b = 0
7a + 0 = 0 + -9b
7a = 0 + -9b
Remove the zero:
7a = -9b

Divide each side by '7'.
a = -1.285714286b

Simplifying
a = -1.285714286b