josemelinda4 josemelinda4
  • 07-02-2020
  • Mathematics
contestada

2x-3y=-11
2x+y=9
What is the answer for this substitution method

Respuesta :

TheNoobXD
TheNoobXD TheNoobXD
  • 07-02-2020

Answer:

(-4,17)

Step-by-step explanation:

2x-3y=-11

2x+y=9

solve the equation

x=-4

2x+y=9

substitute the value of x into an equation

2×(-4)+y=9

solve the equation

y=17

A possible solution is

(-4,17)

check the solution

2×(-4)-3=-11

2×(-4)+17=9

simplify

-11=-11

9=9

the order pair is a solution

answer is (-4,17)

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