Question

(111) Solve : 2x - 3y=9; 2x + y = 13.
How many natural numbers from 10 to 150 divisible by 4​

Answer 1

Answer:

Step-by-step explanation:

2x = 9+3y x = 9+3y/2 then putting the value of x in 2nd equation 2x+y = 13 2×9+3y/2 + y = 13 9+3y+y = 13 9+4y = 13 4y = 13 - 9 4y = 4 y = 4/4

Missing: 150 ‎| Must include: 150

Answer 2

Answer:

2x-3y=9

-2x-y= -13

-4y= -4

y= 1

putting value of y in 1st equation

2x- 3(1)= 9

2x= 9+3

x=6

y=1