A washer and dryer cost $1000 combined. the cost of the washer is three times the cost of the dryer. what is the cost of the dryer?

$750 cost of the washer.

Step-by-step explanation:

3x+x=1,000

4x=1,000

x=1,000/4

x=$250 cost of the dryer.

3*250=$750 cost of the washer.

Proof:

750+250=1,000

1,000=1,000

or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!

answer: y=0 if that is what u r looking for