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26-04-2017
Mathematics

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A system of equations is shown below. Find the solution by using substitution.

y=5x+7
y=−3x+7

a) (1, 6)

b) (0, 7)

c) (2, 4)

d) (-1, 7)

Respuesta :

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21-10-2019

Answer:

b) [tex](0, 7)[/tex]

Step-by-step explanation:

−3x + 7 = 5x + 7

- 5x - 5x

____________

−8x + 7 = 7

- 7 - 7

________

−8x = 0

___ __

−8 −8

x = 0; 7 = y

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