## Elementary Algebra

Dell's stock record gained $1$ dollar for this five-day period.
The term "loss" indicates the subtraction of money while the term "gain" indicates the addition of money. Dell's stock lost value on Monday and Friday while it gained value on Tuesday, Wednesday, and Thursday. Gains and losses: $-2$, $+1$, $+3$, $+1$, and $-2$ Add up the losses and gains to obtain: $= (-2) + (1) + (3) + (1) + (-2)$ $= -2 + 1 + 3 + 1 -2$ $= -2 + 4 + 1 -2$ $= -2 + 5 - 2$ $= -4 + 5$ $= 1$ dollar Therefore, Dell's stock gained $1$ dollar for this five-day period.