How many unicycles did they make

Question

There are 88 more bicycles than unicycles, and 5 times as many tricycles as unicycles. Id they made 40 more bicycles than tricycles, how many unicycles did they make

Answer 1

b = u + 88

t = 5u

b = t + 40

 

Because b equals two things, they equal each other.

 

u + 88 = t + 40

 

t = 5u, so we substitute 5u for t.

 

u + 88 = 5u + 40

-4u = -48

u = 12