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Galina-37 [17]
3 years ago
11

20 points!

Mathematics
1 answer:
liraira [26]3 years ago
4 0

Answer:

A is the answer you are looking for

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–2x + 2y = -4<br> 3х + Зу = -18
rodikova [14]

Answer:

(-2, -4)

Step-by-step explanation:

–2x + 2y = -4

3х + Зу = -18

Divide the first equation by 2

–2x/2 + 2y/2 = -4/2

-x +y = -2

Divide the second equation by 3

3х/3 + Зу/3 = -18/3

x + y = -6

Add these equation together

-x +y = -2

x + y = -6

-------------------

0x + 2y = -8

2y = -8

Divide each side by 2

2y/2 = -8/2

y = -4

Now we need x

x+y = -6

x-4 = -6

Add 4 to each side

x-4+4 = -6+4

x = -2

3 0
3 years ago
To find the product of two digit number and a 1 digit number you can multiply the tens multiply the ones and find of each
kumpel [21]

Yes you can multiply 10 to find the numbers

4 0
3 years ago
Evaluate:<br> 4 + -2 + -7
krok68 [10]

Answer:

-5

Step-by-step explanation:

8 0
2 years ago
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Simplify 12p-3q +8q - 7p
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5p+5q

Step-by-step explanation:

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57

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