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Find the missing coordinate (?, -1) for 3x -4y=11
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Find the missing coordinate (?, -1) for 3x -4y=11

User Mahinlma
by
5.2k points

2 Answers

4 votes

Answer:


(7)/(3)

Explanation:

Substitute -1 in place of y in the equation:


3x -4(-1)=11\\3x=7\\x=(7)/(3)

User Himanshurb
by
5.6k points
13 votes

Answer:

(7/3, -1)

Explanation:

3x -4y=11

Let y = -1

3x -4(-1) = 11

3x +4 =11

Subtract 4 from each side

3x+4-4 = 11-4

3x = 7

Divide each side by 3

3x/3 = 7/3

x = 7/3

User Claus Due
by
4.7k points
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