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6x-7y=7andx-7y=-8 find valve of x and y​

User Ajmal Sha
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2 Answers

12 votes
12 votes

Answer: x = 3 and y = 11/7

Step-by-step explanation: 6x-7y+(-6x) = 7+(-6x) -7y/-7 = -6x+7/-7 y = 6/7x-1 x-7 (6/7 (x) -1) = -8 -5x+7+(-7) = -8+(-7) -5x/-5 = -15/-5 x = 3 y = 6/7x-1 y = (6/7) (3) -1 y = 18/7-1 18/7-1/1 18/7-7/7 y= 11/7 x = 3 and y = 11/7

User Toxaris
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2.8k points
20 votes
20 votes

Answer:

x = 3, y = 11/7.

Explanation:

6x - 7y = 7

x - 7y = -8 Subtract:

5x = 15

x = 3

3 - 7y = -8

-7y = -11

y = 11/7.

User Anis D
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2.7k points