Find the value of "a" if you knew the perimeter was 47 meters long. Here is the experssion 7a-2

49-2 my answer

6 answers

The perimeter of what?
Triangle
Doesn't help. Is the triangle equilateral and 7a-2 is the length of each side?

If so, then
3(7a-2) = 47
21a - 6 = 47
21a = 53
a = 53/21 metres
A rectangular hall is 47 meters long and 25 meters wide what is the perimeter?
a is nothing
144
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