Question

One line segment m is (3x + 5) units long and line segment n is (x - 10). What is the value of r if line segments m and n are congruent? ​

Answer 1

I believe it is -17.5. Tell me if I am wrong

Explanation:

3x + 5 = x - 10

-x -5 -x -5

2x = -15

x = -7.5

3(7.5) + 5

= 22.5 + 5

= -17.5