Question

solve by elimination method. x/4 + y/5 = x/5 + y/4 -1 =22
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Answer 1

Answer:

x/4+y/5=22 and x/5+y/4-1=22

5x+4y=22*20 and 4x+5y-20=22*20

5x+4y=440 and 4x+5y=420

so x= 57 and y=38