Question

At her bike factory, Eleanor manufactures two-wheel and three-wheel bikes. She has 96 seats and 212 wheels in inventory. She wants to use all the seats and wheels. How many three-wheelers should she manufacture?

Answer 1

if there are x 2-wheelers and y 3-wheelers, just count the wheels and seats:

x+y = 96
2x+3y = 212

2x+3(96-x) = 212
x=76, y=20

Answer 2

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