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LifeIsADangerousGame
 4 years ago
This is the question: First, solve the equation for y. (5 points) Second, find the value of y for the given xvalue. (5 points)
3x  2y = 7, when x = 3
This is my answer: Is it correct?
1.
3x  2y = 7
3x  2y  3x = 7  3x
2y = 3x + 7
2y/2 = 3x + 7/2
y = 3/2x + 7/2
2.
3x  2y = 7
3 X 3  2y = 7
9  2y = 7
9  2y  9 = 7  9
2y = 16
y = 8
LifeIsADangerousGame
 4 years ago
This is the question: First, solve the equation for y. (5 points) Second, find the value of y for the given xvalue. (5 points) 3x  2y = 7, when x = 3 This is my answer: Is it correct? 1. 3x  2y = 7 3x  2y  3x = 7  3x 2y = 3x + 7 2y/2 = 3x + 7/2 y = 3/2x + 7/2 2. 3x  2y = 7 3 X 3  2y = 7 9  2y = 7 9  2y  9 = 7  9 2y = 16 y = 8

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anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Check the second one...why are you multiplying 3 with 3x?

LifeIsADangerousGame
 4 years ago
Best ResponseYou've already chosen the best response.0Because she(my teacher) wants to know what y is and she told me that x is 3

LifeIsADangerousGame
 4 years ago
Best ResponseYou've already chosen the best response.0In the second one, I'm not solving it as a slope equation, but as a regular "find x or y" equation

Hero
 4 years ago
Best ResponseYou've already chosen the best response.2Technically, yes, but, I believe it was meant to be solve in a certain way. Check out my solution: 1. 3x  2y = 7 3x  2y  3x = 7  3x 2y = 3x  7 2y/2 = 3x + 7/2 y = 3/2x + 7/2 y = (3x + 7)/2 2. y = (3x + 7)/2 y = (3(3)+7)/2 y = (9+7)/2 y = (16)/2 y = 8

Hero
 4 years ago
Best ResponseYou've already chosen the best response.2By the way, you also made some algebraic mistakes in the first part. I corrected them for you.

LifeIsADangerousGame
 4 years ago
Best ResponseYou've already chosen the best response.0Ohhh thanks!
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