armendarizmarcoMarco
armendarizmarcoMarco armendarizmarcoMarco
  • 30-11-2016
  • Mathematics
contestada

Solve this system of equations using the addition method.
5x + 2y = 19
x - 2y = -1

Respuesta :

yiyi21 yiyi21
  • 05-12-2016
2y+5x-5x= 19-5x. x-x-2y=-1-x
2y= 19-5x. -2y=-1-x
÷2= ÷2. ÷-2 = ÷-2
y= 19/2 -5/2x. Y = 1/2 + x/2
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