Question

the length of each side of an equilateral triangle is increased by 5 inches, so the perimeter is now 60 inches.Write and solve an equation to find the original length of each side of the equilateral triangle

Answer 1

x=15

Explanation:

x+5+x+5+x+5=60

3x+15=60

3x=45

x=15

Check 15*3=45

20*3=60

Because it is equilateral all the side lengths are the same.