What is the product if the largest of three consecutive odd integers whose sum is 129 is multiplied by 4?
Is the right equation:
x + (x + 2) + 4(x + 4) = 129?
no, first you need to find three consecutive odd integers whose sum is 129.
let the three consecutive odd integers be $\displaystyle (x-2),x,(x+2)$,
so
$\displaystyle (x-2)+x+(x+2)=129$
solving this, you'll get $\displaystyle x$, and the largest odd integers is $\displaystyle (x+2)$
You can use whatever expressions provided that they are odd consecutives relative to $\displaystyle x$. You could have :
$\displaystyle (x + 88)$ and $\displaystyle (x + 90)$ and $\displaystyle (x + 92)$
or
$\displaystyle (x - 192)$ and $\displaystyle (x - 190)$ and $\displaystyle (x - 188)$