7 + 2x/3=5 what’s x?
1 answer:
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If we call the area A, then 
if we call the perimeter P, then
subtracting 14 gives
subtracting 2x gives
dividing by 5 gives
or
if we call the perimeter P, then
subtracting 14 gives
subtracting 2x gives
dividing by 5 gives
or
we know the Inn is charging 155.82 and that's 100% plus 6%, namely 106% of an amout of say that is "x", being the 100%.
since we know that 155.82 is 106%, what is "x"?