Question

please solve this maths . Step by Step. ​

Answer 1

Answer:

i hope its clear now

Answer 2

Answer:

a+b+c=6

Step-by-step explanation:

4a+5b+9c=36---------------(1)

7a+9b+17c=66----------------(2)

Multiplying (1) by 2 we get

8a+10b+18c=72--------------(3)

subtracting (2) from (3)

a+b+c=72-66=6

so a+b+c=6