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pochemuha
4 years ago
15

DUE TOMORROW! 20 POINTS!!!!!!

Mathematics
1 answer:
Virty [35]4 years ago
3 0

Answer:

Step-by-step explanation:

2x-3y=4

-2x+3y=-10

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

0=-6

no solution

Answer: No Solution

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

-2x+5y=6

2x-5y=-6

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

0=0

infinitely many solutions

Answer: Infinitely many solutions

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

-3x+4y=3

-12x+16=8

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

-12x=8-16

-12x=-8

12x=8

x=8/12

simplify

x=2/3

-3(2/3)+4y=3

-2+4y=3

4y=3-(-2)

4y=3+2

4y=5

y=5/4

Answer: x=2/3, y=5/4. (2/3, 5/4).

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

6x+y=-1

-6x-4y=4

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

-3y=3

y=3/-3

y=-1

6x-1=-1

6x=-1+1

6x=0

x=0/6

x=0

Answer: x=0, y=-1. (0, -1).

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yan [13]

Answer:

The HCF of 168 & 196 is 28

Step-by-step explanation:

The factors of 168 are: 1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168

The factors of 196 are: 1, 2, 4, 7, 14, 28, 49, 98, 196

The highest factor that both 168 and 196 share is 28

Hope this helps :D

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3 years ago
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