PLEASE HELP WITH THIS QUESTION FOE 20 POINTS
THIS IS A WRITING QUESTION, NO MULTIPLE CHOICE
Jackson is two times older than Shelly. if the sum of their ages is 18, how old is shelly??

Respuesta :

Shelly is 6 years old. 6 x 2 is 12. 12 + 6 = 18.
2x+1x=18
3x=18
x=6. Shelly is 6 years old. and Jackson 12