Answer:
y = 10
Step-by-step explanation:
Given the equation 2y+9-6y = -31
We are to find the value of y that will make the equation true
2y+9-6y = -31
Collect the like terms
2y-6y = -31-9
-4y = -40
Divide through by -4
-4y/-4 = -40/-4
y = 10
Hence the value of y is 10