3a-4b=12 what does a solve?

a = 4 + - 1.333333333b

Step-by-step explanation:

Simplifying

3a + 4b = 12

Solving

3a + 4b = 12

Solving for variable 'a'.

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

Add '-4b' to each side of the equation.

3a + 4b + - 4b = 12 + - 4b

Combine like terms: 4b + - 4b = 0

3a + 0 = 12 + - 4b

3a = 12 + - 4b

Divide each side by '3'.

a = 4 + - 1.333333333b

Simplifying

a = 4 + - 1.333333333b