Question

pratisthapan
3 x + 7 y equal minus 9

2 x + 3 y equal minus 5

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Answer 1

Answer:

x=-8/5 and y=-3/5

Step-by-step explanation:

3x+7y=-9

or, 6x+14y=-18…(I)

2x+3y=-5

or, 6x+9y=-15…(ii)

substracting (ii) from (I) get

6x+14y-6x-9y=-18+15

or, 5y=-3

or, y=-3/5

replacing y=-3/5 in equation (I) get

6x+14×(-3/5)=-18

or, 30x-42=-90

or, 30x=-90+42

or, 30x=-48

or, x=-48/30

or, x=-8/5