plz proper answer send me gyz
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Answer:
subtract both the equations..
then y is cancelled
and we get , 3x-x = 2-7
→ 2x = -5
→ x = -5/2
and y = 7-x = 7+5/2 = 19/2
Answered by
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Answer:
(3x+y=2) .... i
(x+y=7)×3 .... ii
3x+y=2
3x+3y=21
Subtract ii-i
2y=19
y=19/2 (9.5)
so,
x=-2.5
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