Mathematics
charliyolooooo
36

What is the solution to the system of equations? 2x+y=-3 x-2y= -4 ( ? , ? )

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(2) Answers
william2004

By elimination: 2x + y = -3, x - 2y = -4  (x - 2y = -4)  * 2  = 2x - 4y = -8 (2x + y = -3) - (2x - 4y= -8) = 5y = 5 (divide both sides by 5) y = 1 (use y to find x in either equation) 2x + (1) = -3 = 2x = -4 =x = -2 (-2,1) (you can check them in the other equations if you want)

ufnwish73

The answer is x= -2, y=1 2*(-2)+1= -4+1= -3 -2-2*1- -2 -2= -4 Final answer: (x,y)= (-2,1)~

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