Question

3a+b=7
-6a+b=22
a=?
b=?

Answer 1

Answer:

a= -5/3

b = 12

Step-by-step explanation:

3a + b = 7. - (1)

-6a + b = 22. -(2)

on substracting (1) from (2)

-9a = 15

a = -15/9

a = -5/3

Now, putting the value of a in (1) ,we get

3(-5/3) + b = 7

-5 + b = 7

b = 7+5

b= 12

Hope this will help you ✌️