Question

11. If 2x+3y = 5 and 3x+2y = 10, then x-y A. 3 B.4 C. 5 bumbardy D. 61/3 should
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Answer 1

Answer:

Step-by-step explanation:

From eq.1):-

2x+3y=5

2x= 5-3y

x= (5-3y)/2

From eq.2):-

3x+2y=10

3(5-3y)/2+2y=10 (putting value of x)

(15-9y)/2+2y=10

15-9y+4y=20

-9y+4y=20-15

-5y=5

y= -1

Then, putting value of y in eq.1

2x+3y=5

2x+3(-1)=5

2x-3=5

2x=5+3

2x=8

x=4

Hence, x-y= 4-(-1)= 4+1= 5 Ans.