Question

3a+2b+c=22,b+c=8 and c=6,
What is the value of: a+b+c?

Answer 1

Answer:

c=6

b=2 because b+c=8    b+6=8       b=8-6        b=2

a=

 3a+2b+c=22

3a+4+6=22

3a+10=22

3a=22-10

3a=12

a=12/3  =4

a+b+ = 4+2+6 =12