halwoodkaty halwoodkaty
  • 02-11-2019
  • Mathematics
contestada

Solve each system by subst
1) y= 63-11
-2x-3y=-7​

Respuesta :

Аноним Аноним
  • 02-11-2019

y= 63-11

y= 52

-2x-3y=-7

-2x-3(52)= -7

-2x-156= -7

move -156 to the other side

sign changes from -156 to +156

-2x-156+156= -7+156

-2x= -7+156

-2x= 149

divide both sides by -2 to get x by itself

-2x/-2= 149/-2

x=- 149/2

Answer:

(-149/2, 52)

Answer Link

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