Given the equation :

We will use estimation to find the value of the given expression
So, the best estimation for the number 576 is = 600
The best estimation for the number 8 is = 10
So, the given expression is approximately = 600 ÷ 10 = 60
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We can calculate the error of the approximation as following :
The actual value is : 576 ÷ 8 = 72
So, the difference is = 72 - 60 = 12
so, the percentage of error will be :

What multiplies to 25 and adds to -10
-5 and -5
(x-5)(x-5)
(x-5)²
Answer:
x=y-4 is x=y-4
y=2+ 2x/2
Step-by-step explanation:
First of all you have to make them equal to each other. What I mean is the following
3x+20=2x+40
Then you should just solve for x