Question

e TO
llowing simultaneous e
(1) 2x + 3y = 12 ; x - y = 1
(2) x - 3y = 1 ; 3x - 2y + 4 =
(3) 5x - 6y + 30 = 0 ; 5x + 4
(4) 3x - y - 2 = 0 ; 2x + y =
(5) 3x + y = 10 ; x - y = 2
ind the values of each of the foll​

Answer 1

1)

x-y = 1

so, x = 1+y

put this value in equation 1st

2(1+y) + 3y = 12

2 + 2y +3y = 12

2 + 5y = 12

5y = 12-2

y = 2

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