9a-(3a+B)=

Solution for 9a-(3a+B)= equation:

Simplifying
9a + -1(3a + B) = 0

Reorder the terms:
9a + -1(B + 3a) = 0
9a + (B * -1 + 3a * -1) = 0
9a + (-1B + -3a) = 0

Reorder the terms:
-1B + 9a + -3a = 0

Combine like terms: 9a + -3a = 6a
-1B + 6a = 0

Solving
-1B + 6a = 0

Solving for variable 'B'.

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

Add '-6a' to each side of the equation.
-1B + 6a + -6a = 0 + -6a

Combine like terms: 6a + -6a = 0
-1B + 0 = 0 + -6a
-1B = 0 + -6a
Remove the zero:
-1B = -6a

Divide each side by '-1'.
B = 6a

Simplifying
B = 6a