12a-7b+(7a-4b)=

Solution for 12a-7b+(7a-4b)= equation:

Simplifying
12a + -7b + (7a + -4b) = 0

Remove parenthesis around (7a + -4b)
12a + -7b + 7a + -4b = 0

Reorder the terms:
12a + 7a + -7b + -4b = 0

Combine like terms: 12a + 7a = 19a
19a + -7b + -4b = 0

Combine like terms: -7b + -4b = -11b
19a + -11b = 0

Solving
19a + -11b = 0

Solving for variable 'a'.

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

Add '11b' to each side of the equation.
19a + -11b + 11b = 0 + 11b

Combine like terms: -11b + 11b = 0
19a + 0 = 0 + 11b
19a = 0 + 11b
Remove the zero:
19a = 11b

Divide each side by '19'.
a = 0.5789473684b

Simplifying
a = 0.5789473684b