Question

12a+34d=24
16a+60d=44
please answer fast.​

Answer 1

Answer:

Please refer to the picture

Answer 2

Answer:

a= -7/22

d= 9/11

Step-by-step explanation:

12a+34d=24

6a+17d=12                  [dividing by 2]

24a+ 68d =48                   [Multiplying by 4]     ........ (i)                

16a+60d=44

8a+30d=22                  [dividing by 2]

24a+90d=66                    [Multipling by 3]                      .......... (ii)

Subtracting  eq(i) from (ii),we get

22d=18

d=18/22

d=9/11

Put value of d in eq(i),we get

24a+612/11=48

24a=48-612/11

24a=(528-612)/11

24a=-84/11

a=-84/(11*24)

a= -7/22