Respuesta :
you basically want to get x on it's own to find out what it equals so,
multiply both sides by 9:
x+2 = 45
take away 2 from both sides:
x = 43
X=43
Because if you plug it in, (43+2)= 45 then divide by 9, you will get 5 therefore X=43
Because if you plug it in, (43+2)= 45 then divide by 9, you will get 5 therefore X=43