Question

Solve for x and y:
3(2x +y) = 7xy
3(x + 3y) = 11xy

Answer 1

Answer:

❣ ANSWER ❣

✡ ROCKY HERE ✌

3 ( 2x + y ) = 7 xy

6x + 3y = 7 xy ---(1)

3 ( x + 3y ) = 11 xy

3x + 9y = 11 xy ----(2)

multiplying eq (2) by 2

6x + 18y = 22 xy ----(3)

by elimination method

6x + 18y = 22 xy

6x + 3y = 7 xy

_______________________

15 y = 15 xy

x = 1 15 y cancels on both the sides ----(4)

substituting eq (4) in eq (1)

6 + 3y = 7y

6 = 4y

y = 3 / 2

x = 1 and y = 3 / 2

✴HAPPY TO HELP

Answer 2

Answer:

Step-by-step explanation:

3(2 X+ Y) = 7 XY

6 X+3Y = 7 XY.................(1)

3(X+3 Y) = 11 XY

3 X + 9 Y = 11 XY.....................(2)

(2)*2;

6 X + 18 Y = 22 XY.............(3)

(3)-(1):

( 6 X- 6 X) + ( 18 Y - 3 Y) = 22 XY - 7 XY

                         15 Y = 15 XY

                             X = 1

SUBSTITUTING X = 1 IN (1)

6*1 + 3 Y = 7*1*Y

6+3 Y = 7 Y

6 = 7 Y-3 Y

6 = 4 Y

Y = 6/4

Y = 3/2

Y = 1.5

X= 1 AND Y = 1.5.

HOPE THIS HELPS.