xy-x+2y = 6 equation is shifted to form equation xy=c what is c?
Answer Posted / srikanth bhandary
answer for this question
xy-x+2y=6-----(1)
xy=c----------(2)
add -2 on both LHS AND RHS to the equation
xy-x+2y-2=6-2
xy+2y-x-2=4
y(x+2)-1(x+2)=4
(y-1)=4
(x+2)=4
y=4+1=5
x=4-2=2
put the value of x and y in equation 1
xy=c
5*2=10
c=10
Is This Answer Correct ? | 7 Yes | 14 No |
Post New Answer View All Answers
One day the Finance minister decides that the country should have only 33 paise and 56 paise.If there are two traders having enough change in the two denominations, what is the minimum amount for which they can transact?
electrical question in diploma level
There are two candles with different thickness, but are of equal length. The thicker one lasts of six hours and the thinner candle last for 2 hours less than the thicker one. Suresh lights the two candles at the same time. When he went to bed he saw the thicker one is twice the length of the thinner one. For how long did Suresh light the two candles.
write a program that prompts the user to enter three sides of a triangle and prints whether it is a right triangle or not.
A certain type of mixture is prepared by mixing brand A at Rs.9 a kg. with brand B at Rs.4 a kg. If the mixture is worth Rs.7 a kg., how many kgs. of brand A are needed to make 40kgs. of the mixture?
The mean and the variance of a binomial distribution are 4 and 2 respectively. Then the probability of 2 successes is?
Each row of letters or numbers has a rule connecting them. Write the next number or letterin the brackets. K , A , J , B , I , C , H , (_ _ _)
he hour hand lies between 3 and 4. Tthe difference between hour and minute hand is 50 degree.What are the two possible timings?
Explain the Binomial theorem?
12 men can build wall of length of 12m in 10 days how many men are required to build 20 m in 15 days.
Jack and Jill went up and down a hill. They started from the bottom and Jack met Jill again 20 miles from the top while returning. Jack completed the race 1 min a head of Jill. If the hill is 440 miles high and their speed while down journey is 1.5 times the up journey. How long it took for the Jack to complete the race ?
be * be = acb a,b,c,e are non zero numbers find b,e.
Ms. Maya deposits an amount of Rs. 17800 and obtained Rs. 31684 at the end of 6 years. What was the rate of simple interest per year?
Rakesh buys 1 gallon of milk for Rs.12 and mixes it with 20% water. He then sells it for Rs.15, What is the percentage of gain that Rakesh would get.
An apple seller is having some apples. He is selling half of the apple what he has plus half the apple to the first customer. In the same way he sells the remaining apple to 7 customers. After selling to 7 customers, he has no apples with him.