Answer:
30
Step-by-step explanation:
if A=b+6
then b=A-6
A=5/4b
A=5/4*(A-6)
so, A=5/4A-(6*5) /4
-1/4A=-6*5/4
A=30
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Verified answer
Answer:
30
Step-by-step explanation:
if A=b+6
then b=A-6
A=5/4b
A=5/4*(A-6)
so, A=5/4A-(6*5) /4
-1/4A=-6*5/4
A=30