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3 years ago

X = 16 - 4y 3x + 4y =8 substitution method

Mathematics

1 answer:

8_murik_8 [283]3 years ago

5 0

Answer:

i think x = -4, y = 5

Step-by-step explanation:

x = 16 - 4y

3x + 4y = 8

3(16 - 4y)+4y = 8

48-12y+4y = 8

48-8y = 8

48-8 = 8y

40 = 8y

5 = y

x = 16 - 4y

x = 16 - 4(5)

x = 16 - 20

x = -4

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