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Evgen [1.6K]
3 years ago
15

Solve the system by substitution. y = 8x y = 4x + 8

Mathematics
1 answer:
Taya2010 [7]3 years ago
6 0

Answer:

y = 16

x = 2

Step-by-step explanation:

y = 8x

y = 4x + 8

then, by substitution:

8x = 4x + 8

8x - 4x = 8

4x = 8

x = 8/4

x = 2

y = 8x

y = 8*2

y = 16

Check:

y = 4x + 8

y = 4*2 + 8

16 = 8 + 8

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