if x-y/xy=5 and x+y/xy=7 then the value of x is
Answers
Answered by
12
Answer:
x=1
Step-by-step explanation:
x+y=5xy
x-y=7xythen
2x=12xy~X=6xy
y=xy~1=x
from x=6xy
y=1/6
Answered by
14
If x-y/xy = 5 and x+y/xy = 7 then the value of x is 1
Solution:
Given that,
On cross-multiplication we get,
x - y = 5xy ……… [Equation 1]
Also given that,
On cross-multiplication we get,
x + y = 7xy ……… [Equation 2]
subtracting equation 2 from equation 1 we get
x + y - (x - y) = 7xy - 5xy
x + y - x + y = 7xy - 5xy
2y = 2xy
x = 1
Thus the value of "x" is 1
Learn more about Fractions
X+y=5 and x-y=7 ;then x=?
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