Question

(x+y)/2 - (x-y)/3 = 8
(x+y)/3 + (x-y)/4 = 11

Answer 1

Answer:

The answer to this question is....

Answer 2

Answer:

x=18. y=6

Step-by-step explanation:

let x+y=u &x-y=v

(x+y)/2-(x-y)/3=8

u/2-v/3=8.,3u-2v=48(by cross multiplication----1 eq

(x+y)/3+(x-y)/4=11

u/3+v/4=11,4u+3v=132 ----------------------2eq

by elimination method

3u-2v=48]×4

4u+3v=132]×3

+12u-8v=+192

+12u+9v=+396

- - = -

____________

0. -17v= -204

v = -204/-17

v = 12

so,3u-2v =48

3u-2×12=48

3u-24=48

3u =48+24

3u = 72

u =72/3

u=24

now

x+y=u & x-y =v

x+y=24.

x-y= 12

_______

2x=36

x=36/2

x=18

x+y=24

18+y=24

y=24-18

y=6