3a+4b-(-6a-3b)=

Solution for 3a+4b-(-6a-3b)= equation:

Simplifying
3a + 4b + -1(-6a + -3b) = 0
3a + 4b + (-6a * -1 + -3b * -1) = 0
3a + 4b + (6a + 3b) = 0

Reorder the terms:
3a + 6a + 4b + 3b = 0

Combine like terms: 3a + 6a = 9a
9a + 4b + 3b = 0

Combine like terms: 4b + 3b = 7b
9a + 7b = 0

Solving
9a + 7b = 0

Solving for variable 'a'.

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

Add '-7b' to each side of the equation.
9a + 7b + -7b = 0 + -7b

Combine like terms: 7b + -7b = 0
9a + 0 = 0 + -7b
9a = 0 + -7b
Remove the zero:
9a = -7b

Divide each side by '9'.
a = -0.7777777778b

Simplifying
a = -0.7777777778b