thegirlinblack11034
thegirlinblack11034 thegirlinblack11034
  • 25-03-2019
  • Mathematics
contestada

What is the solution to the following system of equations? 2x+3y=4 x+y=3

Respuesta :

tiff321 tiff321
  • 30-03-2019

Answer:

(5, -2)

Step-by-step explanation:

x + y = 3 can become x = 3-y

we are going to use substitution

now plug x = 3-y into the other equation

2(3-y) + 3y = 4

6-2y+3y = 4

6 + y = 4

subtract 6 from both sides

y = -2

now plug in y back into one of the equations, it doesn't matter which one. I am going to use the x + y = 3 equation

x -2 = 3

x = 5

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