lilrude383 lilrude383

12-04-2022
Mathematics

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HURRY 50 points solve the system using linear combination. show all work.{ 9x + 4y = 28 {2x + 4y = 0

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fieryanswererft fieryanswererft

12-04-2022

Answer:

y = -2

x = 4

Explanation:

9x + 4y = 28

2x + 4y = 0

Make "x" subject in equation 2

2x + 4y = 0

2x = -4y

x = -2y

Insert this in equation 1

9(-2y) + 4y = 28

-18y + 4y = 28

-14y = 28

y = -2

Find for x

x = -2y

x = -2(-2)

x = 4

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