Can someone pls help me with this under 20 mins and give step by step explanation and will give BRAINLIEST ANSWER WILL REPORT IF FIDNT EXPLAIN THE SPECIFIC ANSWER

Answer:
-45
Step-by-step explanation:
Get a common denominator
4y/9-6y/9=10
-2y/9=10
Multiply by 9
-2y=90
Divide by -2
y = -45