Answer:a=2
Explanation:
Simplifying
a = 3a + -4
Reorder the terms:
a = -4 + 3a
Solving
a = -4 + 3a
Solving for variable 'a'.
Move all terms containing a to the left, all other terms to the right.
Add '-3a' to each side of the equation.
a + -3a = -4 + 3a + -3a
Combine like terms: a + -3a = -2a
-2a = -4 + 3a + -3a
Combine like terms: 3a + -3a = 0
-2a = -4 + 0
-2a = -4
Divide each side by '-2'.
a = 2
Simplifying
a = 2