Jamari99 Jamari99

24-09-2016
Mathematics

contestada

Solve the system of equations
X+3y=-1
2x+2y=6

Respuesta :

AngeNova AngeNova

24-09-2016

x + 3y= -1 /*(-2)
2x + 2y =6
________

-2x -6y = 2
2x + 2y =6 (f1 + f2)
________
0 -4y =8
y= -2

x + 3y =-1
x -6 = -1
x= 5

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