Answer :
Answer: x= -1 y= 4
Step-by-step explanation:
We are going to solve this using substitution.
Here is the work...
5x+3(4)=7
That is what it woud look like because y is equal to 4.
3 times 4 is 12.
So now we have...
5x+12=7
Now we want to get All the common factors together...
To do this we will subtract 12 from 7 and we get -5.
Here is our equation now...
5x=-5
Now we divide x by 5 to get x alone, but we also divide -5 by 5.
x=-1
Now all we have to do to solve for y is put x in an equation.
In this case here is what we will do...
5(-1)+3y=7
Multiply...
-5+3y=7
Now we need to get the common factors together so lets add 5 to 7.
3y=12
3y/3=y
12/3=y
y=4
But that is already in your problem...OOF.Dont worry its still correct.