elilarriva elilarriva
  • 23-09-2022
  • Mathematics
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NEED ALL ANSWERS PLEASE NUMBER THEM PLEASE:)))

NEED ALL ANSWERS PLEASE NUMBER THEM PLEASE class=

Respuesta :

angle46089
angle46089 angle46089
  • 23-09-2022

Answer:

6. B

7. C

8. C

Step-by-step explanation:

6.

3x

------- = 1.5 (x + 1)

x + 1 (x + 1)

3x = 1.5 (x + 1)

3x = 1.5x + 1.5

-1.5x -1.5x

1.5x = 1.5

x = 1

7.

2x + 3y = 15

(x + y = 3)-2

2x + 3y = 15

-2x - 2y = -6

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

y = 9

x + y = 3

x + 9 = 3

-9 -9

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

x = -6

(x, y) = (-6, 9)

8.

(-4x + y = 4) -2

-8x + 2y = -2

8x - 2y = -8

-8x + 2y = -2

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

-10

No Solution

I hope this helps!

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