Question

Find the value of x.
x+16
9

Answer 1

x=-7

Explanation:

The triangles sides are all the same in length, therefore, you need all the sides to be equal to 9.

-12+16=4 This addition problem does not equal to 9 so it is not correct.

-7+16=9 This is correct because -7+16 or 16-7 = 9.

-9+16=7 This addition problem does not equal to 9 so it is not correct.

-11+16=5 This addition problem does not equal to 9 so it is not correct.

So, x = -7.

Answer 2

x = - 7

Explanation:

given that the 3 angles in the triangle are congruent, then the triangle is equilateral with the 3 sides congruent , then

x + 16 = 9 ( subtract 16 from both sides )

x = - 7