santiago9030 santiago9030
  • 23-10-2021
  • SAT
contestada

X +y=3 and 2x +3y=-4

Respuesta :

Аноним Аноним
  • 23-10-2021

Answer:

x + y = 3

2x + 3y = 4

Solve equation for the variable y

y = -x + 3

Plug this in for variable y in equation

2x + 3•(-x +3) = 4

-x = -5

Solve equation for the variable x

x = 5

By now we know this much :

x = 5

y = -x+3

Use the x value to solve for y

y = -(5)+3 = -2

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