Respuesta :

bcalle
3y + 2 + 2y + 7 = 10y - 11
5y + 9 = 10y - 11
20 = 5y
4 = y

RS = 14
ST = 15
RT = 29

Use the number line​ below, where RS=7y+2​, ST=5y+7​, and RT=14y−3. a. What is the value of​ y? b. Find​ RS, ST, and RT.