(3+7y)+(-4+y)=

Solution for (3+7y)+(-4+y)= equation:

Simplifying
(3 + 7y) + (-4 + y) = 0

Remove parenthesis around (3 + 7y)
3 + 7y + (-4 + y) = 0

Remove parenthesis around (-4 + y)
3 + 7y + -4 + y = 0

Reorder the terms:
3 + -4 + 7y + y = 0

Combine like terms: 3 + -4 = -1
-1 + 7y + y = 0

Combine like terms: 7y + y = 8y
-1 + 8y = 0

Solving
-1 + 8y = 0

Solving for variable 'y'.

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

Add '1' to each side of the equation.
-1 + 1 + 8y = 0 + 1

Combine like terms: -1 + 1 = 0
0 + 8y = 0 + 1
8y = 0 + 1

Combine like terms: 0 + 1 = 1
8y = 1

Divide each side by '8'.
y = 0.125

Simplifying
y = 0.125