Question

21,08-удвоенное число=12,6.Найдите удвоенное число

Answer 1

21,08-12,6=8,48
если удвоенное,значит разделим полученное число на 2
8,48/2=4,24
я думаю,что так

Answer 2

To find the doubled number in the equation 21.08 - doubled number = 12.6, we can rearrange the equation to isolate the doubled number.

Let's solve the equation step by step:

21.08 - 2x = 12.6

First, subtract 21.08 from both sides of the equation:

21.08 - 21.08 - 2x = 12.6 - 21.08

This simplifies to:

-2x = -8.48

Next, divide both sides of the equation by -2 to solve for x:

(-2x) / -2 = (-8.48) / -2

This gives us:

x = 4.24

So the doubled number is 4.24.

To verify, we can substitute this value back into the equation:

21.08 - 2(4.24) = 21.08 - 8.48 = 12.6

The equation holds true, confirming that the doubled number is indeed 4.24.