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Darina [25.2K]
3 years ago
6

2x - y = 9 y=x-7 what is the answer

Mathematics
1 answer:
marshall27 [118]3 years ago
4 0

Answer:

x = 2

y = -5

Step-by-step explanation:

2x - y = 9

y = x - 7

2x - y = 9

2x - (x - 7) = 9

2x - x + 7 = 9

x + 7 = 9

x = 2

y = x - 7

y = 2 - 7

y = -5

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Step-by-step explanation:

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4 0
3 years ago
Write an addition problem that has 9/10 as the sum
kicyunya [14]
There are a number of different problems that you could do that will give you an outcome of 9/10
For example, 1/2 and 2/5 add up to 9/10.
3/10 and 6/10 also add up to 9/10.

Find the sum of 7/10 and 1/5
Find the sum of 7/20 and 11/20
Find the sum of 1/2 and 3/10 and 1/10
Find the sum of 1/5 and 2/5 and 3/10

Hope this helps :) 
3 0
3 years ago
Is (6, 2) a solution to this system of equations? x + 4y = 14 2x + 4y = 20
uranmaximum [27]
No it’s not because (6,2) would be a no solution so no
3 0
3 years ago
Which ordered pair is the solution to the system of equations?
tiny-mole [99]

Answer:

You can use Gaussian Elimination.

Double both sides of the first equation and add the second equation.

6x + 4y = 8

5x - 4y = 3

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

11x      = 11

x = 1

5 - 4y = 3

-4y = -2

y = 1/2

Step-by-step explanation:

7 0
3 years ago
Here is the problem: (Picture)
jolli1 [7]

Answer:

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Step-by-step explanation:

6 0
3 years ago
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