Question

if 3A + 2B+ C=22,B+C=8 and c=6 then what is value of A+B+C​

Answer 1

Answer:

A=4

Step-by-step explanation:

3A+2B+C=22--------------eq1

B+C=8------.----------------eq2

C=6--------------------------eq3

:B+C=8----put eq3 in eq2

:B+6=8

:B=8-6

:B=2--------------------------eq4

now put eq4 and eq3 in eq 1

:3A+2B+C=22

:3A+2(2)+6=22

:3A+4+6=22

:3A+10=22

:3A=22-10

:3A=12

:A=12/3

:A=4