Question

please help! also does anyone know how to get rid of a warning bc i jus got one for no reason-

Answer 1

They’re equal by alternate exterior angles theorem. So 2x+15=5x-12

Subtract 2x from both sides 15=3x-12
Add the 12 on Both sides then 27=3x
Divide by 3 to isolate the x and x equals 9

9

Answer 2

The answer is 9 , hope that helps