i need help with this question i dont get it.

Answer:
y = -16
Step-by-step explanation:
First lets handle the fractional y's:
[tex]\frac{5}{2}y - \frac{1}{2}y = \frac{4}{2}y\\[/tex]
This can be reduced down to 2y. That is easier to work with. Next we will rewrite the equation using or new value for y:
35 + 2y = 3
Subtract 35 from both sides:
2y = -32
Next, divide both sides by 2
y = -16
Check our answer:
35 + [tex]\frac{5}{2}(-16) - \frac{1}{2}(-16) = 3[/tex]
35 -40 + 8 = 3
-5 + 8 = 3
3 = 3