richarddavis14
richarddavis14 richarddavis14
  • 23-01-2020
  • Mathematics
contestada

Graph the system of equations on your graph paper to answer the question.

y=−x+3
y=x+5



What is the solution to this system of equations?
( , )

Respuesta :

ShiningHalley ShiningHalley
  • 29-01-2020

Answer:

The solution of the two give equations is (-1,4)

Step-by-step explanation:

i) First equation is        y = -x + 3

ii) Second equation is y = x + 5

iii) If we add the two equations we get 2y = 8    ∴ y = 4

iv) Substituting the value of y obtained in iii) in equation i) we get

    4 = -x + 3   ∴ -x = 4 - 3     ∴ -x = 1      ∴ x = -1

v) substituting x = -1 and y = 4 in the second equation we see that the equation is satisfied.

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