To isolate a variable you have to “do something to both sides”. i dont know your equation. but you either have to add, subtract, multiply or divide
Answer:
The answer is "789.03 and 806.16".
Step-by-step explanation:

For point a:
Calculating the value for

For point b:
Calculating the value of 
Answer:
Wait what are u asking?
Step-by-step explanation:
1,000 BRACELETS AND SELL EM FOR 1.00 AND MAKE A 1,000 BACK
Answer:
x=1 meter
Step-by-step explanation:
step 1
Find the area of the rectangular pool

we have

substitute

step 2
Find the area of rectangular pool including the area of the walkway
Let
x ----> the width of the walkway
we have

substitute

step 3
Find the area of the walkway
To find out the area of the walkway subtract the area of the pool from the area of rectangular pool including the area of the walkway
so

step 4
Find the value of x if the area of the walkway equal the area of the pool
so

Solve the quadratic equation by graphing
The solution is x=1 meter
see the attached figure