Summersett Summersett

10-02-2021
Mathematics

contestada

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

Respuesta :

zarampa zarampa

10-02-2021

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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