Write down the expression for the length of the broken line ABCD, if AB = x, BC is 2 times more than AB, and CD is 6cm less than AB.

univerkov | February 16, 2021 | education

The expression for the length in this task will have the sum of all three segments.

Then if BC is twice as large as AB, then it is equal to 2x.

And if the СD is less than AB by 6 cm, then it is equal to x – 6.

And then, now that we know all three sides, we can write down their sum: x + 2x + x – 6.

Reduce the equation by reducing the same terms: 3x – 6.

Answer: the equation for the length of a straight line will be like this: 3x – 6.

One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.