5x - 3y = 1 , 2x + 5y = 19Solve it by the method of substitution.
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5x-3y=1 -------------------------------------->(1)
2x+5y=19 ----------------------------------->(2)
(2)=>5y=19-2x
=>y=19-2x/5 -------------------------------->(3)
(1)=>5x-3(19-2x/5)=1
=>5x-57+6x/5=1
=>25x+6x-57/5=1
=>31x-57=53
=>31x=5+57
=>31x=62
=>x=62/31
=>x=2
(3)=>y=19-2x/5
=>y=19-2×2/5
=>y=19-4/5
=>y=15/5
=>y=3
•°• x=2 , y=3
2x+5y=19 ----------------------------------->(2)
(2)=>5y=19-2x
=>y=19-2x/5 -------------------------------->(3)
(1)=>5x-3(19-2x/5)=1
=>5x-57+6x/5=1
=>25x+6x-57/5=1
=>31x-57=53
=>31x=5+57
=>31x=62
=>x=62/31
=>x=2
(3)=>y=19-2x/5
=>y=19-2×2/5
=>y=19-4/5
=>y=15/5
=>y=3
•°• x=2 , y=3
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