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rodikova [14]
3 years ago
9

Solve each system by substitution. 5) 5x + 3y =-23 y = 4

Mathematics
1 answer:
docker41 [41]3 years ago
3 0

Answer:

(- 7, 4 )

Step-by-step explanation:

Given the 2 equations

5x + 3y = - 23 → (1)

y = 4 → (2)

Substitute y = 4 directly into (1_

5x + 3(4) = - 23, that is

5x + 12 = - 23 ( subtract 12 from both sides )

5x = - 35 ( divide both sides by 5 )

x = - 7

Solution is (- 7, 4 )

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