Identical 3518

The carpenter cut two identical pieces into shelves from a 2-meter longboard. He cut the rest into four side shelves of 20 cm. How long are the shelves?

Correct answer:

x =  60 cm

Step-by-step explanation:


200=2x+4·20

200=2·x+4·20

2x = 120


x = 120/2 = 60

x = 60

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