Find the value of y 7=6+y

y = 1

Step-by-step explanation:

7 = 6 + y

6 + 1 = 7

y is 1

Step-by-step explanation:

6+1=7, so 7 is = to 6+1

2√10

Explanation:
The rule to get the area of the square is given as:
A = s^2
We are given that:
Area = 40 
Substitute with the given area to get the side (s) as follows:
A = s^2
40 = s^2
s = √40
either s = 2√10 unit length (accepted solution)
or s = -2√10 unit length (rejected solution because the length of the side cannot be negative)