Question

Which is the right one. i need help!!!!

Answer 1

Answer: 23

step by step:

The angle is 90 degrees

(2x+14) + (x+7) = 90

(2x+ x) + (14+7) = 90

3x+21 = 90 (subtract 21 from both sides)

3x+ 21 - 21 = 90 - 21

3x = 69 ( divide each side by 3)

x = 23