CPM Homework Help : AC Problem 9-86

Read the following problem. Then decide which system of equations below can represent this situation.

Multiple Choice: The length of a rectangle is $4$ units longer than twice its width. If the area is $126$ square units, find the length and width.

$\begin{aligned} [t] &w = 2l + 4 \\ &wl = 126 \end{aligned}$

$\begin{aligned}[t] &l = 2w + 4 \\ &l + w = 126 \end{aligned}$

$\begin{aligned}[t] &w = 2l + 4 \\ &l + w = 126 \end{aligned}$

$\begin{aligned}[t] &l = 2w + 4 \\ &wl = 126 \end{aligned}$

Hint:

Write the equations based on the information given above. Choose the letter that exactly represents your answer.