Math
posted by Princess .
x^2 + 9y^2 = 37
x  2y = 3
simultaneous equation by elimination

Math 
Steve
elimination is usually done with linear equations. Using substitution,
x = 2y3, so we have
(2y3)^2 + 9y^2 = 37
4y^2  12y + 9 + 9y^2 = 37
13y^2  12y  28 = 0
(y2)(13y+14) = 0
Respond to this Question
Similar Questions

maths
simultaneous equations x + 2y = 4 3x  4y = 7 x=3 and y = 1/2 i need to explain how i got this answer and do not know how to do that? 
maths B
i don't understand how to do simultaneous solutions of linear functions. i don't understand what elimination is and how to substitute. for eg. 4c3d=11 3c4d=17 is that elimination? 
Physics
Two events that are simultaneous in one frame of reference will be: A) simultaneous in all frames of reference B) simultaneous in another frame that is moving in the opposite direction C) simultaneous in another frame of reference … 
math simultaneous equation with surds
ive got quite far but im stuck, can you go through each stage so i can check. simultaneous equation with surds 5x3y=41 (7root2)x+(4root2)y=82 thanks for the help 
Math
x=y+3 5xy=2 Solve using Elimination I already solved the equation using Substitution, Graphing, and a table I just need a little more help on Elimination. I know that in Elimination they have to be in the same form so I put it in … 
Math
Solve these simultaneous linear equations using elimination method : 3a = 2b + 1 and 3b = 5a  3 
5a2b=14 , 2a+2b=14
Use the method of elimination to solve the following pairs of simultaneous equation 8y+4z=7 6y8z=41 
Maths
Solve Simultaneous Equetion Using Elimination Method: (A)2x  3y= 3 and 3x  7y= 1. 
Math
Solve the simultaneous equation n/4m/6=1 Using elimination method 
Math
Solve the simultaneous equation n/4m/6=1 m/5+n/2=10 Using elimination method