cccayena cccayena
  • 07-11-2021
  • Mathematics
contestada

Solve the simultaneous equations
x+y=1
2? + y = 7

Respuesta :

regina3176
regina3176 regina3176
  • 07-11-2021

Answer:

(x,y)(6,-5)

Step-by-step explanation:

given.x+y=1----(1)

2?+y=7----(11)

x+y=1

2x+y=7

x-2x+y-y=1-7

-x=-6

-x/-1=-6/-1

x=6

to substitute "x" from-----1

6+y=1

6-6+y=1-6

y=-5

•

. .(x,y)=(6,-5)

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