37 If as then find value the ratio atib
b
7b
3
Answers
Answered by
1
Answer:
ab=73
⇒
a7=b3=k
⇒ a=7k,b=3k
∴7a+9b7a-9b
=
7×7k+9×3k7×7k-9×3k
=
49k+27k49k-27k
=
76k22k
=
3811
Step-by-step explanation:
hope it's helpful!
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