mightylila15 mightylila15

05-03-2021
Mathematics

contestada

A system of equations is shown below.

y = x2 + 6x - 8

y = 4x + 7

What is the sum of the y value(s) of the solution set?
-----------------------------------------------------------------------------------
Group of answer choices

-2

32

6

no solution

Respuesta :

06-03-2021

Answer:

Step-by-step explanation:

x² + 6x - 8 = 4x + 7

x² + 2x - 15 = 0

(x+5)(x-3) = 0

x = -5, 3

y = 4x + 7 = -13, 19

-13 + 19 = 6

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