x=45
Step-by-step explanation:
x/5+7-7=16-7
5/1×x/5=9×5/1
x=45
Definition of a rational number:
A rational number is a number that can be written as fraction of integers.
19/10 is a fraction.
19 and 10 are integers.
19/10 follows exactly the definition of a rational number, so it is rational.
i hope my answer help you
1st=5x-100
2nd=1/3x-7
3rd=x²×4
Answer:
x = +2, x = -2
Step-by-step explanation:
The equation to solve in this problem is

The first step we do is to subtract 35 on both sides of the equation, so we get:

Now we simplify the equation by dividing both terms by 10:

Now we observe that the term on the left is the difference between two squares, so it can be rewritten using the property:

Where here,
a = x
b = 2
So we can rewrite the equation as:

And this equation is zero when either one of the two factors is zero, so the two solutions are:

no the square root of 113 is rounded to 56x2