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


Please Help Members By Posting Answers For Below Questions

WRITE ABOUT A RECENT VISIT TO A RESTAURANT.

4274


A lorry starts from Banglore to Mysore at 6.00 A.M,7.00am.8.00 am.....10 pm. Similarly one another starts from Mysore to Banglore at 6.00 am,7.00 am, 8.00 am.....10.00pm. A lorry takes 9 hours to travel from Banglore to Mysore and vice versa. A lorry which had started at 6.00pm will cross how many lorries.

888


A person has his own coach&whenever he goes to railway station he takes his coach.One day he was supposed to reach the railway station at 5 O'clock.But he finished his work early and reached at 3 O'clock. Then he rung up his residence and asked to send the coach immediately. He came to know that the coach has left just now to the railway station. He thought that the coach has left just now to the railway station.He thought that he should not waste his time and started moving towards his residence at the speed of 3mi/hr.On the way,he gets the coach and reaches home at 6 o'clock.How far is his residence from railway station.

708


If ABC =C3C3 and CAB = D3D3, Then find D3÷B3D3÷B3

968


There are 1, 40, 00, 000 pencils of lengths ranging from 3 to 6 inches and are put up straight. The average length of 80% of pencils is 5 inches. Calculate the total length spanned by the pencils.

1195






there are 76 persons. 53 can read hindu,46 can read times,39 can read deccan and 15 can read all.if 22 can read hindu and deccan and 23 can read deccan and times then what is the number of persons who read only times and hindu………

912


sir , i hv done 85 correct question in ssc cgl-tier-i 2010 after checking through my source which is correct , tell me whether i m eleigible for tier-ii or not charan , jalandhar

1804


a, b, b, c, c, c, d, d, d, d, . . . . . . Find the 288th letter of this series?

970


in a market 4 man are standing .the average age of the four before 4 years is 45, after some days one man is added and his age is 49. What is the average age of all?

912


a cube has colors blue,red ,yellow each on two opposite sides.cube is divided into "32 small cubes and 4 large cubes". how many cubes (on 36 cubes) have blue at least one side. how many cubes have colors on two sides.

733


How many people are there in the queue if I am 7th in the queue from either end?

731


The sum of the series 1 + 1(1+1/n) + 3(1+1/n)2 + ..... is equal to?

740


The dimensions of a certain box are 48" X 30" X 52". If the size of the box is increased proportionately until the sum of its dimensions equals 156", what will be the increase in the shortest side?

686


Given the length of the 3 sides of a triangle.Find the one that is impossible? (HINT : sum of smaller 2 sides is greater than the other one which is larger)

786


In 1978, a kg of paper was sold at Rs25/. If the paper rate increases at 1.5% more than the inflation rate which is 6.5% a year, then what will be the cost of a kg of paper after 2 years?

697