Question

If a-15=c and a-5=b and b=? The value of a+b+c=122

Answer 1

a+b+c=122
a+a-5+a-15=122
3a-20=122
a=142÷3
b=a-5
b=(142÷3)-5
b=127/3 or 42.3 Ans

Answer 2

.a+b+c=122
We knw the values of C & B
Substitute the b&c values in above equation,
We got
.a+a-5+a-15=122
3a+20=122
3a=122-20=102
.a=102/3=34
Substitute this value in b's equation
We got b=29..