9 + 4y = -5x + 7y solve for x
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Answer:
To solve for x in the equation 9 + 4y = -5x + 7y, we can rearrange the equation to isolate the variable x. Let's move the terms involving x to one side of the equation:
-5x = 9 + 4y - 7y
Next, let's simplify the equation:
-5x = 9 - 3y
Finally, divide both sides of the equation by -5 to solve for x:
x = (9 - 3y) / -5
So, x is equal to (9 - 3y) divided by -5.
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Which of the following is a common incorrect answer given by students when solving the problem 8 -:- 1/2= a. 16 b. 4 c. 1/4 d. 1/16
PLEASE HELP!!!!!!solve for the equations :- 3y + 7 + 3(y-1) = 2(2y+6)- (x-5)(x+4) = (x+7)(x-6)- 2(x+1)2(x-2)2 = x(x-3)
Jessica cannot remember the correct order of the five digits in her ID number. She does remember that the ID number contains the digits 9, 0, 3, 1, 5. What is the probability that the first four digits of Jessica's ID number will all be odd numbers?
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Move the decimal place over 9 places to the right for the numerator
9,900,000,000
Move the decimal place over 8 places to the right for the denominator
150,000,000
Divide both
9,900,000,000 / 150,000,000 = 66
Answers
Answer:
Step-by-step explanation:
We can simplify this expression by combining like terms.
To combine like terms, we are looking for terms that share the same variable and exponent.
First, we can see that the terms and
share the same variable (h) and the same exponent (2).
This simplifies to .
Next, we can see that and
share the same variable (h) and the same exponent (1) so we can add these.
This simplifies to .
Lastly, we can see that we just have 7, no more terms with the same variable (none). So this is 7.
Adding up all the terms in standard form (), we get
.
Hope this helped!
Answers
So the smaller number is 2/5n
So n + 2/5n = 21
Which is equivalent of n + 2n/5 = 21
Then you need to get rid of the fraction by multiplying everything by 5
5n + 2n = 105
Or simply
7n = 105
Divide both sides by 7 to isolate n
n = 15
So the larger number is 15
Now we need to work out 2/5 of 15 to work out the smaller number
(15/5 [the denominator])*2 [the numerator] = 6
So the two numbers are 15 and 6
Final answer:
The two numbers are 6 and 15; since 6 is 2/5 of 15 and their sum is 21.
Explanation:
In this problem, we want to find two numbers, which we'll call x and y, such that their sum is 21. That is, x + y = 21. Additionally, we know that the first number is 2/5 of the second number, or x = 2/5 * y.
First, solve for x in the equation x = 2/5 * y, we get x = 2y/5.
Next, substitute x in the equation x + y = 21 by 2y/5 to get 2y/5 + y = 21. When you solve that, you'll find y = 15. Then substitute y = 15 in the equation x = 2/5 * y, you'll get x = 6.
So, the two numbers are 6 and 15.
Learn more about Solving Equations here:
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Answer : LCM = 1020
Hope this helps. - M
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Answer:
I don't know, I kind of wonder the same thing sometimes. But everyone understands things at a different rate, so that's why I'm here helping people by answering their questions and doing my best to explain how I got there.
thank you for the free points though :)
Answer:
because they are over thinking easy thing and getting stressed out.
Step-by-step explanation:
this is what happened to me
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Hope this helps!!!