Question

if 2x-3y+1/2 = x+4y+8/3 =4x-7y+2/5 then what is (x+y)equal to?​

Answer 1

Answer:

r et de la moitié du temps à autre

Answer 2

Answer:

Step-by-step explanation:

Given Statement: 2x - 3y + 1/2 = x + 9y + 8/3 = 4x + 7y + 12/5

To find: x+ y

Consider,

2x - 3y + 1/2 = x + 9y + 8/3

2x - x - 3y - 9y = 8/3 - 1/2

x - 12y = 13/6

6x - 72y = 13 .............(1)

x + 9y + 8/3 = 4x + 7y + 12/5

x - 4x + 9y - 7y = 12/5 - 8/3

-3x + 2y = -4/15

-45x + 30y = -4

45x - 30y = 4 .............(2)

Now solving Equation (1) and (2), we get

from eqn (1),

x = (13+72y)/6

Therefore, x + y = 4.55

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