-(5xy-9)+3(3xy+4)=

Solution for -(5xy-9)+3(3xy+4)= equation:

Simplifying
-1(5xy + -9) + 3(3xy + 4) = 0

Reorder the terms:
-1(-9 + 5xy) + 3(3xy + 4) = 0
(-9 * -1 + 5xy * -1) + 3(3xy + 4) = 0
(9 + -5xy) + 3(3xy + 4) = 0

Reorder the terms:
9 + -5xy + 3(4 + 3xy) = 0
9 + -5xy + (4 * 3 + 3xy * 3) = 0
9 + -5xy + (12 + 9xy) = 0

Reorder the terms:
9 + 12 + -5xy + 9xy = 0

Combine like terms: 9 + 12 = 21
21 + -5xy + 9xy = 0

Combine like terms: -5xy + 9xy = 4xy
21 + 4xy = 0

Solving
21 + 4xy = 0

Solving for variable 'x'.

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

Add '-21' to each side of the equation.
21 + -21 + 4xy = 0 + -21

Combine like terms: 21 + -21 = 0
0 + 4xy = 0 + -21
4xy = 0 + -21

Combine like terms: 0 + -21 = -21
4xy = -21

Divide each side by '4y'.
x = -5.25y-1

Simplifying
x = -5.25y-1