The perimeter of the ABC triangle is 28cm. The BC side is 2 times larger than the AB side, and the AC

The perimeter of the ABC triangle is 28cm. The BC side is 2 times larger than the AB side, and the AC side is 2 cm less than the BC side. Find the sides of the triangle.

Let AB – x cm, then BC – 2x cm, and AC – 2x-2 cm.The perimeter is the sum of the lengths of all sides, by condition it is equal to 28 cm.
Let’s make the equation:
x + 2x + 2x-2 = 28
5x = 30
x = 6
We get: AB = 6cm, BC = 12cm, AC = 10cm.