Work-Out Corner has 5 more than 3 times as many exercise bicycles as The Gym. Together they have 21 bicycles. Solve the equation x + 3x + 5 = 21 to find the number of bicycles at Work-Out Corner.

Question

anonymous · Answer

add the x variables, subtract 5 from each side...

anonymous · Answer

4x+5=21
4x=16

anonymous · Answer

yep.....so x = ?

anonymous · Answer

4?

anonymous · Answer

now use the first line of the problem. "WOC has 5 more than 3 times The Gym..." (that is 3x + 5, algebraically), where x is equal to the number of bikes at The Gym

anonymous · Answer

so knowing the gym has 4 bikes, you can substitute that value into 3x+5 to find the answer!