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attashe74 [19]
3 years ago
9

X – 7y=-1 -X + 9y = 3

Mathematics
1 answer:
Aleks04 [339]3 years ago
7 0

Answer:

y=1

x=6

Step-by-step explanation:

just move -7y and x=-1+7y

-(-1+7y)+9y=3

1-7y+9y=3

2y=2

y=1

x-7=-1

x=6

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3 years ago
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Can someone help me with both I will mark u brilliant
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Step-by-step explanation:

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6. Solve the the following system of equations: 4y+2x=14 2y+2x=10
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4y+2x=14 ==> multiply this 1st equation by (-1) => -4y-2x=-14
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3 0
4 years ago
I forgot how to do this, can someone help me-
Artyom0805 [142]

Step-by-step explanation:

1) x/20 = -9

By cross multiplication,

x = -180

2) -168 = -14k

k = -168/-14

k = 12

3) -5m = -50

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4) -320 = -20n

n = 16

5) -4 = x - 5

x = 1

6) -6(-8 + n) = -54

42 - 6n = -54

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3x - 27 = -3

3x = 24

x = 8

8) 9k + 3 = -78

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k = -9

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10) -5r + 7 = -73

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<em>Hope</em><em> </em><em>it</em><em> </em><em>helps</em><em>.</em>

6 0
2 years ago
Please helppppppppppppp
Serggg [28]

Answer:

101

HOPE THIS HELPS

- Todo ❤️

Step-by-step explanation:

Suplemetary angles

180-79=101

4 0
2 years ago
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