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kotykmax [81]
3 years ago
13

How do you do x - y = 4 -4 + 2y= -4

Mathematics
2 answers:
Nimfa-mama [501]3 years ago
7 0
The way to do this is:(Look at picture)

nadezda [96]3 years ago
3 0
X-y=4
-4+2y=-4   Start with the second equation by adding 4 to both side of the equation. that will give you 4-4+2y=-4+4. the answer is 2y=0. Now if you divide both sides by 2 you end with 2y/2=0/2, the result is y=0.
Now substitute this answer for y in the first equation of x-y=0. Once you substitute it should look like this, x-0=4, therefore, x=4.
Hope this helps you. 
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50 points!!!
fenix001 [56]

Answer: A

Step-by-step explanation: once you line the numbers up in order from least the greatest, the two middle numbers will be 12. Add 12 + 12 and you get 24. Then divide it by 2 and get 12. That is your median. Your 1st quartile will be 10. Your second quartile will be 15. Your minimum number is 4 and your maximum number is 18.

6 0
3 years ago
Which expression represents the number 867
Sindrei [870]

Answer:

C. 500 + 300 + 50 + 10 + 7

Step-by-step explanation:

Which expression represents the number 867?

A. 80 + 60 + 70

B. 800 + 6 + 7

C. 500 + 300 + 50 + 10 + 7

D. 500 + 300 + 60 + 70

Checking the answer choices by adding the expression

A. 80 + 60 + 70

= 210

No correct

B. 800 + 6 + 7

= 813

Not correct

C. 500 + 300 + 50 + 10 + 7

= 867

Correct

D. 500 + 300 + 60 + 70

= 930

Not correct

Therefore option C. 500 + 300 + 50 + 10 + 7 is the correct answer

4 0
3 years ago
I have yet another question...
pochemuha
6. x = 28
7. x = -23
8. x = 9


let me know if i missed one.
5 0
3 years ago
Read 2 more answers
Choose the simplified solution(s) to this equation: ?- 128 - 0 18 1642 V128 18/2 Question 33 )​
tatiyna

D is correct answer

±8√2

7 0
3 years ago
Solve for y<br> 2y + 6 = 1 - 3y
UNO [17]

Answer:

-1

Step-by-step explanation:

2y+6=1 -3y

add three to both sides and minus 6 from both sides becasue you want to get y by itself

5y=-5

now both sides by 5

y=-1

6 0
4 years ago
Read 2 more answers
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