If 12a + 3b =1 and 7b-2a=9, what is the average of a and b?
Created: 5 years ago |
Updated: 3 years ago
best des
12a + 3b = 1........... (1)
7b - 2a = 9........... (2)
(1) + (2) =
10a + 10b = 10
a + b = 10/10 = 1
a + b/2 = 1/2
a + b/2 = 0.5
a এবং b এর গড় হলো 0.5
Md Azizur Rahman
Founder of Satt
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