Carl is boarding a plane. He has 2 checked bags of equal weight and a backpack that weighs 4kg. The total weight of Carl's baggage is 35kg. Write an equation to find the weight of the checked bags.

X=weight of one checked bag.

we can suggest this equation:

2x+4=35

Now, we solve this equation:

2x+4=35

2x=35-4

2x=31

x=31/2

x=15.5

Answer: the equation will be: 2x+4=35, and the weight of one checked bag will be 15.5 g,