y-(y+3)=y+y

Solution for y-(y+3)=y+y equation:

Simplifying
y + -1(y + 3) = y + y

Reorder the terms:
y + -1(3 + y) = y + y
y + (3 * -1 + y * -1) = y + y
y + (-3 + -1y) = y + y

Reorder the terms:
-3 + y + -1y = y + y

Combine like terms: y + -1y = 0
-3 + 0 = y + y
-3 = y + y

Combine like terms: y + y = 2y
-3 = 2y

Solving
-3 = 2y

Solving for variable 'y'.

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

Add '-2y' to each side of the equation.
-3 + -2y = 2y + -2y

Combine like terms: 2y + -2y = 0
-3 + -2y = 0

Add '3' to each side of the equation.
-3 + 3 + -2y = 0 + 3

Combine like terms: -3 + 3 = 0
0 + -2y = 0 + 3
-2y = 0 + 3

Combine like terms: 0 + 3 = 3
-2y = 3

Divide each side by '-2'.
y = -1.5

Simplifying
y = -1.5