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Taya2010 [7]
2 years ago
6

3) Solve the system using substitution. Show all work. -4x + 3y = 23 y = -7x - 9

Mathematics
1 answer:
Rina8888 [55]2 years ago
5 0

Answer:

x = -2

Step-by-step explanation:

-4x + 3y = 23

y = -7x - 9  //  *-3

-4x + 3y = 23

-3y = 21x -27

+++++++++++++++++++

-4x = 21x + 50

-50 = 25x

x = -2

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