Barbara

Barborka goes to school with a backpack that was 2 - times more expensive than a bag slipper. If the backpack was 36 euros cheaper, it has cost the same as the bag slipper. How many backpacks cost, and how many bag slippers?

Correct answer:

x =  72 eur
y =  36 eur

Step-by-step explanation:


x = 2 · y
x-36 = y

x-2y = 0
x-y = 36

Row 2 - Row 1 → Row 2
x-2y = 0
y = 36


y = 36/1 = 36
x = 0+2y = 0+2 · 36 = 72

x = 72
y = 36

Our linear equations calculator calculates it.



Did you find an error or inaccuracy? Feel free to write us. Thank you!







Tips for related online calculators
Do you have a linear equation or system of equations and looking for its solution? Or do you have a quadratic equation?

You need to know the following knowledge to solve this word math problem:

Units of physical quantities:

Grade of the word problem:

Related math problems and questions: