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anonymous
 4 years ago
y  2x = 3
3x  2y = 5
solve by substitution. help? :/
anonymous
 4 years ago
y  2x = 3 3x  2y = 5 solve by substitution. help? :/

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anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0so basically, in substitution you want to solve for one variable in one of the equations

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0so for example, y  2x = 3 becomes y = 2x+3. then substitute y in the second equation as 2x+3 so 3x  2y = 5 becomes 3x  2(2x+3) = 5

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Solve for x. Then plug in the answer from x to find y. You should get anirud's answer

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Multiply The Equation 2xy=3 with 2 and Assume it as Equation One and Take 3x2y=5 as Equation 2 and Subtract 12 And Eliminate The y term and then U will Get The Value of x... Then Put the value of x in anyone of the Two Equations and U will get y

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0You might want to make a note of this one: Whenever they ask you TO SOLVE WITH SUBSTITUTION: Either of the 2 equations, check which one looks simpler: y  2x = 3 3x  2y = 5 Wouldn't you say equation 1 looks more simple? :) So, just take the value y in terms of x: y = 3 + 2x. Then put the value of y in the second equation, so we have: 3x2(3+2x) = 5 3x 6 4x=5 x 6=5 Take x to the other side to get x, and bring 5 to the other side to get 5, 65=x 11=x. This is our first answer, let us substitute the value of x in equation 1. y2(11)=3 y+22=3 y=322 y=19 So now we have the answer as: x=11 and y=19. Please let me know if you have any more doubts about this kind of question or anything else, I will try to explain as clearly as I can. :)
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