camilazazueta490 camilazazueta490
  • 13-11-2020
  • Mathematics
contestada

4х + Зу = -2 and y=x-1

Respuesta :

Dominic1021930
Dominic1021930 Dominic1021930
  • 13-11-2020

Answer:

x= 1/7

y= -6/7

Step-by-step explanation:

4x+3y=−2

4x+3(x−1)=−2

7x−3=−2

7x−3+3=−2+3

7x=1

7x/ 7 = 1/7

x=1/7

Check:

y=x−1

y= 1 /7  −1

y= −6/7

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