Answer:
x=14
Step-by-step explanation:
Form an equation; since the two sides are the same length set them equal to each other. 2x-9=x+5 the solve
2x=x+14
then you can plug it back in to check if you want
2(14)-9 = 19
14+5 = 19
14
2x-9=x+5 (being isosceles triange)
2x-x=5+9
hope u understood
