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

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

Simplifying
(5y + -3) + (4y + 9) = 0

Reorder the terms:
(-3 + 5y) + (4y + 9) = 0

Remove parenthesis around (-3 + 5y)
-3 + 5y + (4y + 9) = 0

Reorder the terms:
-3 + 5y + (9 + 4y) = 0

Remove parenthesis around (9 + 4y)
-3 + 5y + 9 + 4y = 0

Reorder the terms:
-3 + 9 + 5y + 4y = 0

Combine like terms: -3 + 9 = 6
6 + 5y + 4y = 0

Combine like terms: 5y + 4y = 9y
6 + 9y = 0

Solving
6 + 9y = 0

Solving for variable 'y'.

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

Add '-6' to each side of the equation.
6 + -6 + 9y = 0 + -6

Combine like terms: 6 + -6 = 0
0 + 9y = 0 + -6
9y = 0 + -6

Combine like terms: 0 + -6 = -6
9y = -6

Divide each side by '9'.
y = -0.6666666667

Simplifying
y = -0.6666666667