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Sever21 [200]
2 years ago
5

Solve each equation by substitution:y = 6x - 17y= -4x +23​

Mathematics
1 answer:
NISA [10]2 years ago
7 0

Answer:

y = 6x - 17 \\ y =  - 4x + 23 \\ then \\ 6 x - 17 =  - 4x + 23 \\ 10x = 40 \\ x = 4 \\ y = 7

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PART A:
Find the rate of change between 1980 and 1989
d for P₁ = 80 - 60
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