Question

(i) x + y = 3; 3x - 2y = 4​

Answer 1

Answer:

$x + y = 3 \: \: \: \: (multiply \: by \: 2) \\ 2x + 2y = 6 \: \: \: \: .....1 \\ 3x - 2y = 4 \: \: \: \: \: ......2 \\ add \: 1 \: and \: 2 \\ 2x + 2y + 3x - 2y = 6 + 4 \\ 5x = 10 \\ x = 2$

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Answer 2

Answer:

x+y=3 multiply -2 both side -2x+2y=-6

3x-2y=4

after subtract it

then x= -2 and y =1