Answer: X=-9, y=5
Step-by-step explanation:
To solve the system of equations using substitution, we need to substitute the value of x from the second equation into the first equation and solve for y.
The second equation is:
x=−9
Substituting this value of x into the first equation, we get:
5(−9)+8y=−5
Simplifying the equation, we get:
−45+8y=−5
Adding 45 to both sides of the equation, we get:
8y=40
Dividing both sides of the equation by 8, we get:
y=5
Therefore, the solution to the system of equations is:
(x,y)=(−9,5)
Hence, the value of y is 5.
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