Question

A+A+A=45 ; B+B+A=23 ; B+C+C=10 , Then what will answer of : C+B+B×A=??

Answer 1

3A=45
A=15
B+B+A=23
2B=23-15=8
B=4
B+C+C=10
2C=10-4=6
C=3
C+B+B×A=3+4+4×15=69

Answer 2

A+A+A=45
3A=45
A=45/3
A=15. ---1
Now,
B+B+A=23
2B+15=23 (Using 1)
2B=23-15
2B=8
B=8/2
B=4. ---2
Again
B+C-C=10
4+2C=10. (Using 2)
2C=10-4
2C=6

since , A=15,B=8,C=6 then
C+B+B×A
=>6+8+8×15
=>14+120
=>134