Tricycle Wagon

PLEASE HELP ON THIS ALGEBRA 1-2 PROBLEM ON SYSTEMS AND EQUATIONS!!!?
please name all the variables and show steps and work because i really dont understand this problem. the problem is below.
A toy store has a number of bicycles, tricycles, and wagons in stock. IIf there are an equal number of tricycles and wagons, and a total of 60 pedal and 180 wheels, how many wagons, bicycles and tricycles are there.
THANK YOU IN ADVANCE!
b = # bicycles
t = # tricycles
w = # wagons
t = w
2 pedals per bicycle and 2 per tricycle, none per wagon, so:
2b + 2t = 60
2b = 60 – 2t
4 wheels per wagon, 2 per bicycle, 3 per tricycle:
4w + 2b + 3t = 180
you can replace the w by t (w = t):
4t + 2b + 3t = 180
2b + 7t = 180
2b = 180 – 7t
insert the second equation (2b = 60 – 2t) into the above:
60 – 2t = 180 – 7t
combine like terms:
-2t + 7t = 180 – 60
5t = 120
t = 24
Now you also know the number of wagons:
w = t
w = 24
Insert those values into any of the other equations to find the number of bicycles:
2b + 7t = 180
2b + 7(24) = 180
2b + 168 = 180
2b = 12
b = 6
Trike & Wagon track
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