3(4) SvlY.SletS Sy =235 Sx + 3y = 3

1.	3(4) SvlY.SletS Sy =235 Sx + 3y = 3
Answer» 1) 5x + 3y = 15..... (1) 7x - 15y = 21......(2) Multiply eq(1) by 5 and then add both equation25x + 15y = 757x - 15y = 21 32x = 96x = 3 Put x = 3 in eq(2)73 - 15y = 2121 - 15y = 21y = 0 2)3x + y = 5..... (1) 5x + 3y = 3......(2) Multiply eq(1) by 3 and then subtract both equation9x + 3y = 155x + 3y = 3 4x = 12x = 3 Put x = 3 in eq(2)53 + 3y = 315 + 3y = 33y = - 12y = - 4

Answer»

1) 5x + 3y = 15..... (1) 7x - 15y = 21......(2)

Multiply eq(1) by 5 and then add both equation25x + 15y = 757x - 15y = 21

32x = 96x = 3

Put x = 3 in eq(2)7*3 - 15y = 2121 - 15y = 21y = 0

2)3x + y = 5..... (1) 5x + 3y = 3......(2)

Multiply eq(1) by 3 and then subtract both equation9x + 3y = 155x + 3y = 3

4x = 12x = 3

Put x = 3 in eq(2)5*3 + 3y = 315 + 3y = 33y = - 12y = - 4

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