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24-06-2017
Mathematics

contestada

What is the solution of equations?

y = 3x + 5
y = -x + 3

A. (2.1, 11.3)
B. (-2.1, 5.1)
C. (-0.5, 3.5)
D. (0.5, 2.5)

Respuesta :

Banabanana Banabanana

24-06-2017

y = 3x + 5
y = -x + 3

-x+3 = 3x+5
3-5 = 3x+x
-2 = 4x
x = -0.5

y = 3x + 5 = 3*(-0.5)+5 = -1.5+5 = 3.5

Abswer: C. (-0.5, 3.5)

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