Question

please solve this problem ​

Answer 1

Step-by-step explanation:

x/3 + y/4 = 4

(4x + 3y)/12 = 4

4x + 3y = 12 × 4

4x + 3y = 48 eq.1

5x/6 - y/8 = 4

(20x - 3y)/24 = 4

20x - 3y = 24 × 4

20x - 3y = 96 eq.2

From eq.1,

4x = 48 -3y

x = (48 - 3y)/4

Putting the value of x in eq.2,

20[(48 - 3y)/4] - 3y = 96

5 ( 48 - 3y) - 3y = 96

240 - 15y - 3y = 96

240 - 18y = 96

-18y = 96 -240

-18y = -144

y = -144/-18

y = 8

x = (48 - 3y)/4

x = (48 - 3(8))/4

x = (48 - 24)/4

x = 24/4

x = 6