12c+5a+7+(-13)+4a=

Solution for 12c+5a+7+(-13)+4a= equation:

Simplifying
12c + 5a + 7 + (-13) + 4a = 0
12c + 5a + 7 + -13 + 4a = 0

Reorder the terms:
7 + -13 + 5a + 4a + 12c = 0

Combine like terms: 7 + -13 = -6
-6 + 5a + 4a + 12c = 0

Combine like terms: 5a + 4a = 9a
-6 + 9a + 12c = 0

Solving
-6 + 9a + 12c = 0

Solving for variable 'a'.

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

Add '6' to each side of the equation.
-6 + 9a + 6 + 12c = 0 + 6

Reorder the terms:
-6 + 6 + 9a + 12c = 0 + 6

Combine like terms: -6 + 6 = 0
0 + 9a + 12c = 0 + 6
9a + 12c = 0 + 6

Combine like terms: 0 + 6 = 6
9a + 12c = 6

Add '-12c' to each side of the equation.
9a + 12c + -12c = 6 + -12c

Combine like terms: 12c + -12c = 0
9a + 0 = 6 + -12c
9a = 6 + -12c

Divide each side by '9'.
a = 0.6666666667 + -1.333333333c

Simplifying
a = 0.6666666667 + -1.333333333c