Question

y/2-x/3+1=0;y/4+x/5=5​

Answer 1

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Answer 2

Answer:

x = 15 & y = 8

Step-by-step explanation:

y/2 - x/3 = -1

3y-2x = -1

6

3y-2x = -6

2x-3y = 6 ------- (1)

y/4 + x/5 = 5

5y + 4x= 5

20

5y+4x =100

4x+5y =100 --------(2)

Multiply equation (1) by 5

& equation (2) by 3

•

• • 10x-15y = 30 -------(3)

12x+15y = 300 -------(4)

Adding equation (3) & (4)

10x-15y = 30

+ 12x+15y = 300

22x = 330

x= 330

22

x = 15

Put the value of x in equation (1)

2x-3y=6

2(15) -3y= 6

30 - 3y = 6

-3y = 6 - 30

-3y = -24

3y = 24

y = 24

3

y = 8