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Alisiya [41]
2 years ago
11

The difference between 7 and -14. Numerical expression

Mathematics
2 answers:
BlackZzzverrR [31]2 years ago
6 0

Answer:

7-(-14)

7+14=21

Step-by-step explanation:

- and -  = +

lina2011 [118]2 years ago
3 0

Answer:

7 - (-14)

7 + 14

21

\huge\underline\red{Hope\:that\:helps}

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Answer:

m=1

Step-by-step explanation:

add 6 to both sides, 9=9m

divide 9 on both sides, m=1

8 0
3 years ago
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What is the solution to this system of equations?<br><br><br>4x + 5y = 7<br><br><br>3x – 2y = –12
oksano4ka [1.4K]

Answer:

x = -2 and y = 3

Step-by-step explanation:

It is given that,

4x + 5y = 7    -----(1)

3x – 2y = –12   ----(2)

<u>To find the value of x and y</u>

eq(1) * 3 ⇒

12x + 15y = 21   ----(3)

eq(2) * 4 ⇒

12x - 8y = -48  ---(4)

eq(3) - eq(4) ⇒

12x + 15y = 21   ----(3)

<u>12x - 8y = -48 </u> ---(4)

 0 + 23y = 69

y = 69/23 = 3

Substitute the value of y in eq(1)

4x + 5y = 7    ----(1)

4x + 5*3 = 7

4x = 7 - 15 = -8

x = -8/4 = -2

Therefore x = -2 and y = 3

5 0
3 years ago
Answer the following.
nexus9112 [7]

Step-by-step explanation:

1075 students were asked how close they live to the college. The table shows the results below with some values missing. Enter the correct values in the boxes remembering to use the % symbol where necessary.

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3 0
1 year ago
25 points to whoever solves the whole page
faust18 [17]

Answer:

row 1

5

4

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10

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2

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row 2

7

10

25

31

42

-2

23

11

23

row 3

-3

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3

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3

0

Step-by-step explanation:

8 0
2 years ago
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What two numbers add up to -20 and multiply to -1125
Oliga [24]
I don't have my calculator handy just now. But just looking at that problem, why don't you try +20 and -45 and see if they do the job.
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