Hi there!
Great question! :D
We'll start by dividing both sides by 5.
It looks something like this:


<span>So,

</span>
When in doubt of the answer, we substitute the variable for the 17 we got.
How?
Since a variable next to a number means to multiply, we'll set up our problem as a multiplication one.
5 × 17 = 85
This is a TRUE statement.
Hope this helps! :D
B because in commutative property of addition the numbers switch but they do not change the sign nor the numbers. hope this helped
Answer:
The width is 5.25 feets
Step-by-step explanation:
The dimensions of the two rectangular wooden boards that Elenor and Max used to make a set for the school play are shown in the attached photo. The widths of the two boards are equal. The lengths are 6 feets and 51/2 feets
Area of each rectangular length, L × Width, W
Area of the longer rectangular board
= 6x W = 6W feet^2
Area of the shorter rectangular board
= 11/2 x W = 11W/2 feet^2
The area of the set is 60-3/8 square feet. This is equal to 483/8 feet^2.
Therefore,
483/8 = 6W + 11W/2 = 23W/2
8 × 23W = 483 × 2
184W = 966
W = 966/184 = 5.25 feets
Hello,
Adding the 2 equations,
x+y+x-y=k+k ==>2x=2k==>x=k
if x=k, y=k-k=0
solution is (k,0)