Question 457528: Can someone help me solve the solutin of the system using the elemination method?
5x + 2y = -11
7x - 3y = 13 Found 2 solutions by mananth, ikleyn:Answer by mananth(16949) (Show Source):
multiply (1)by -3
Multiply (2) by 2
-15x-6y= 33
14x-6y=26
Add the two equations
-x=59
plug value of x in (1)
5x+2y=-11
-295+2y= -11
2y=-11+295
2y=284
y=142
You can put this solution on YOUR website! .
Can someone help me solve the solutin of the system using the elemination method?
5x + 2y = -11
7x - 3y = 13
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The solution in the post by @mananth is FATALLLY WRONG due to numerous arithmetic errors.
I came to bring a correct solution.
Your starting equations are
5x + 2y = -11 (1)
7x - 3y = 13 (2)
Multiply eq(1) by 3; multiply eq(2) by 2
15x + 6y = -33 (3)
14x - 6y = 26 (4)
Add equation (4) from equation (3)
15x - 14x = -33 + 26
29x = -7
x = -7/29
Now find 'y' from equation (1) by substituting the found value x = -7/29 there
+ 2y = -11,
2y = -11 + = = ,
y = .
ANSWER. x = , y = .
