Respuesta :
They Tried To Confuse You You Only Need The Value Of X To Solve This Problem. Since X Is 9 , You're Problem Would Now Be 9 + 20 - 1 Then You Subtract 20 And 1 Which Will Give You 19 Then , You're Left With 9 + 19 Which Is 28. I Hope This Helped You. Have A Good Day.
A = 28
A = 28
