Answer:
no solution
Explanation:
4(y + 5) = y - 10 + 3y ← distribute parenthesis on left side and simplify
4y + 20 = 4y - 10 ( subtract 20 from both sides )
4y = 4y - 30 ( subtract 4y from both sides )
0 = - 30 ← not possible
this indicates the equation has no solution