7y-3+3y-3=90

Solution for 7y-3+3y-3=90 equation:

Simplifying
7y + -3 + 3y + -3 = 90

Reorder the terms:
-3 + -3 + 7y + 3y = 90

Combine like terms: -3 + -3 = -6
-6 + 7y + 3y = 90

Combine like terms: 7y + 3y = 10y
-6 + 10y = 90

Solving
-6 + 10y = 90

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 + 10y = 90 + 6

Combine like terms: -6 + 6 = 0
0 + 10y = 90 + 6
10y = 90 + 6

Combine like terms: 90 + 6 = 96
10y = 96

Divide each side by '10'.
y = 9.6

Simplifying
y = 9.6