-(3a-4b)-7b=

Solution for -(3a-4b)-7b= equation:

Simplifying
-1(3a + -4b) + -7b = 0
(3a * -1 + -4b * -1) + -7b = 0
(-3a + 4b) + -7b = 0

Combine like terms: 4b + -7b = -3b
-3a + -3b = 0

Solving
-3a + -3b = 0

Solving for variable 'a'.

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

Add '3b' to each side of the equation.
-3a + -3b + 3b = 0 + 3b

Combine like terms: -3b + 3b = 0
-3a + 0 = 0 + 3b
-3a = 0 + 3b
Remove the zero:
-3a = 3b

Divide each side by '-3'.
a = -1b

Simplifying
a = -1b