The perimeter of an equilateral triangle is 65 cm, to the nearest centimetre. Find the smallest possible length of a side of the triangle.

The smallest possible side length is around 21.3.

Step-by-step explanation:

Equilateral triangles have 3 sides of equal lengths.

65 ÷ 3 = or 21.333

x= -3

step-by-step explanation:

step 1: simplify brackets

4 - x - 1 = 6

step 2: simpilfy

3 - x = 6

step 3: subtract 3 from both sides

-x = 6 - 3

step 4: simpilfy 6 - 3

-x = 3

step 5: multiply both sides by -1

x = -3