Answer:
Simplifying
12a + b + 3a + 5b = 0
Reorder the terms:
12a + 3a + b + 5b = 0
Combine like terms: 12a + 3a = 15a
15a + b + 5b = 0
Combine like terms: b + 5b = 6b
15a + 6b = 0
Solving
15a + 6b = 0
Solving for variable 'a'.
Move all terms containing a to the left, all other terms to the right.
Add '-6b' to each side of the equation.
15a + 6b + -6b = 0 + -6b
Combine like terms: 6b + -6b = 0
15a + 0 = 0 + -6b
15a = 0 + -6b
Remove the zero:
15a = -6b
Divide each side by '15'.
a = -0.4b
Simplifying
a = -0.4b
Step-by-step explanation:
