Question

How many solutions does this following equation have? -15y + 7 +17y = 2y + 70

Answer 1

The equation has no solution

given - 15y + 7 + 17y = 2y + 70, then

2y + 7 = 2y + 70 ← not possible

there is no solution to the equation

we obtain 0 = 63 ← not possible

Answer 2

This equation has no solution:

-15y+7+17y=2y+70

2y+7=2y+70

7≠70