makenzienations makenzienations
  • 15-01-2020
  • Mathematics
contestada

X-3y=17
-6x+5y=-11
Solving systems by substitution

Respuesta :

donutbeelazy donutbeelazy
  • 15-01-2020

Answer: x=-4, y=-7

Step-by-step explanation:

x-3y=17 Add 3y to both sides to isolate x.

x=3y+17 Now you can substitute this into the other equation.

-6(3y+17)+5y=-11

-18y-102+5y=-11

-13y-102=-11

-13y=91

y=-7 Substitute this back into any equation to find x.

x-3(-7)=17

x+21=17

x=-4

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