6. If x + y =13 and xy =6=, find the value of x - y.
Answers
Answered by
0
Step-by-step explanation:
question is wrong. so rewrite the question
Answered by
1
Answer:
x-y=-23/2
Step-by-step explanation:
x+y=13.........1
xy=6
y=6/x.........2
taking y=6/x in equation 1
x+(6/x)=13
x+6=13x
6=13x-x
6=12x
6/12=x
1/2 =x........3
put this value in equation 2
y=6/x
y=6/1/2
y=6×2
y=12.........4
from equation 3 and 4
x-y=1/2-12
x-y=1-24/2
x-y=-23/2.......answer
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