if 7x+3y=11 and 3x+7y=-1 then x-y=??
Answers
Answered by
23
7x+3y=11
3x+7y=-1
- - +
_________
4x-4y=12
4 (x-y)=3
x-y =3
pl......s mark my answer as a brainlist answer
3x+7y=-1
- - +
_________
4x-4y=12
4 (x-y)=3
x-y =3
pl......s mark my answer as a brainlist answer
janvipatel10:
thanks
Answered by
9
7x + 3y = 11
3x + 7y = - 1
- - +
___________
4x - 4y = 12
4(x - y) = 12
x - y = 12/4
x - y = 3
3x + 7y = - 1
- - +
___________
4x - 4y = 12
4(x - y) = 12
x - y = 12/4
x - y = 3
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