Question

10. If eta = {all digits in our number system), A = {x | x is prime) and B-= {x | x is even},
then B - A is
(a) {4, 6, 8)
(b) {0, 4, 6, 8)
(c) {3,5,7)
(d) {2}
that n(A)
35 then​

Answer 1

Given equations are:

x+2y=5      (1)

7x+3y=13    .2)

Multiplying equation (1) by 7

7x+14y=35    ..(3)

Subtracting equation (2) from equation (3), we have

11y=22

y=2

Now putting y value in equation (1) 

⇒x+2(2)=5

⇒x=5−4

⇒x=1

x=1,y=2

Answer 2

Step-by-step explanation:

Hope it helps you!!!!!!!!!