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Umnica [9.8K]
3 years ago
12

I really need help! ANYONEEEEE

Mathematics
1 answer:
antiseptic1488 [7]3 years ago
5 0

Answer:

I think Its 47? if Im wrong Im very sorry.

Step-by-step explanation:

I added all of the numbers, and the sides without numbers, its simple just add all of the numbers together, I think

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The sum of two times a number and 11 is negative 7
slavikrds [6]
|2 • x| + 11 = -7
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4 0
4 years ago
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X^2-y^2=48 and x-y=2. The solution to the given system of equations is (x,y). What is the value of x + y?
Andru [333]

Answer:

24

Step-by-step explanation:

We have a system of equations, so we can start with the second equation:

x-y=2

And move y to the other side to isolate x:

x=2+y

Now we can replace x into the first equation:

(2+y)^{2} -y^{2} =48\\ (2+y)(2+y)-y^{2} =48\\ 4+4y+y^{2} -y^{2} =48

Notice that we can cancel out the y squared terms:

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Now we just need to find x by replacing y into the second equation:

x-11=2\\ x=13

And finally, add them:

x+y=11+13\\ x+y=24

Hope this helps.

3 0
2 years ago
Read 2 more answers
Five times a number minus eight is the same as ten more than three times a number. Find the number.
serious [3.7K]

Answer:

25

Step-by-step explanation:

5(n-8)=3n+10

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5 0
3 years ago
Plz help asap <br> x + 10 = 20 and<br> y – 8 = 32<br> with step by step explanation plz
valentina_108 [34]

Answer:

10 & 40

Step-by-step explanation:

x+10=20------------------10-20=10

y-8=32--------------------32+8=40

3 0
3 years ago
How do I simplify the radical expression. √8-4√2
WITCHER [35]
√8 = √(4x2)  = 2√2

4√2 =4√2

2√2-4√2 = -2√2


3 0
3 years ago
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