Question

plzz do this question by elimination method ​

Answer 1

Solution:

The given equations are

• 8x + 5y = 9 .....(i)
• 3x + 2y = 4 .....(ii)

Multiply (i) by 3 and (ii) by 8. We get

• 24x + 15y = 27
• 24x + 16y = 32

On subtraction, we get

• y = 5

Putting y = 5 in (i), we get

• 8x + 25 = 9
• or, 8x = - 16
• or, x = - 2

Answer: required solution is x = - 2, y = 5.

Answer 2

Answer:

8x+5y=9-------------------1

3x+2y=4-------------------2

multiply equation 1 with 2,

16x+10y=18----------------------3

multiply equation 2 with 5,

15x+10y=20

By elimination,

16x+10y=18

15x+10y=20

----------------------

x= -2

y=3 x -2+2y=4

y= -6+2y=4

2y=4+6=10

y=10/2=5

Step-by-step explanation:

x= -2

y=5