Solve by elimination method; 84/x + 112/y = 1
80/x + 120/y = 1
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Let 1/x= v, 1/y=k then solve
Then the equ. Be
84u +112k = 1 .-------(1)
80u +120k = 1 --------(2)
then multiply 5 in equ (1) and (2) then we get
5(84u +112k = 1)
5(80u + 120k =1)
So you can solve the question by this process
Then the equ. Be
84u +112k = 1 .-------(1)
80u +120k = 1 --------(2)
then multiply 5 in equ (1) and (2) then we get
5(84u +112k = 1)
5(80u + 120k =1)
So you can solve the question by this process
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