Answer:
10 units
Step-by-step explanation:
In this equation the parenthesis act as a multiplier, so you take w(2w + 2) = 40.
the variable w represents the number 1, so you multiply the numbers within the parenthesis.
w x 2w = 2w
w x 2 = 2w
so now you have 2w + 2w = 40
add the w's for 4w = 40
Now you need to get rid of the number next to the W.
divide the four from the W and divide the 40 as well
4w/4= w
40/4 = 10
W=10
