It is 1
70+30*1=100, which is not a prime number
Answer:
I think this ans may help you
In order to find b1 from your formula stated we need to do few calculations
A=hb1+hb2, as you wee I multiply h with both bases( b1 and b2)
I will subtract hb2 from both sides
hb1=A-hb2
now I will divide my new expression by h
b1=(A-hb2)/h
I would say take 2 from eight which equals 6
