
Brenda E. answered 10/01/16
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Hello,
Let B = the number of Bicycles, Let T = the number of tricycles, Let U = the number of Unicycles
Therefore the 3 equations are
U = B-88
U = T/5
T = B-40
Now substitute T in the second equation:
U = (B-40)/5
and using the first equation substitute for U in the solved equation
B-88 = 1/5B-8
solving above equation for B
You find 4/5B = 80
B=100 Bicycles
Using the first equation:
U=B-88 the number of Unicycles is 12