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DUE TOMORROW! 20 POINTS!!!!!!
Please solve all
find x and y
System of linear equations

1. 2x - 3y = 4
-2x + 3y = -10

2. -2x + 5y = 6
2x - 5y = -6

3. -3x + 4y = 3
-12x + 16 = 8

4. 6x + y = -1
-6x - 4y = 4

Respuesta :

Answer:

Step-by-step explanation:

2x-3y=4

-2x+3y=-10

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0=-6

no solution

Answer: No Solution

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-2x+5y=6

2x-5y=-6

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

0=0

infinitely many solutions

Answer: Infinitely many solutions

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-3x+4y=3

-12x+16=8

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-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).

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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).