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Answer: 0=1/4Y+X/20+1
Explanation:
Place the unknowns on one side
20=5y-x
divide through by 20
1=5y/20-x/20
1=1/4y-x/20
we want to have zero on one side so we subtract 1 on both sides
0=1/4y-x/20+1 this is ame as
x/20-1/4y-1=0