SOLUTION: A new machine can produce three more than twice the production per hour of the old machine. If the new machine can produce 187 units per hour, how many did the old machine produce?

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Question 1121881: A new machine can produce three more than twice the production per hour of the old machine. If the new machine can produce 187 units per hour, how many did the old machine produce?
Answer by Theo(13342) About Me  (Show Source):
You can put this solution on YOUR website!
let x = the production per hour of the old machine.

the production per hour of the new machine is three more than twice the production per hour of the old machine.

that makes the production per hour of the new machine equal to 3 * x + 3.

the new machine can produce 187 units per hour.

your equation becomes 187 = 2 * x + 3

subtract c from both sides of this equation to get 184 = 2 * x

solve for x to get x = 184 / 2 = 92.

the old machine can product 92 units per hour.

the new machine can produce three more than twice this = 2 * 92 + 3 = 184 + 3 = 187 units per hour.