Answer:
Length : 6
Width : 7
Step-by-step explanation:
I'm not 100% sure what this x method is but it should be something like this:
A = L × W
42 = L × W
W = L + 1
L = W - 1
If we substitute L with 7 and 6 with W it will satisfy the above equations:
42 = 6 × 7
