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3 years ago

X+y=21 y=6x can anyone help with this

Mathematics

1 answer:

Semmy [17]3 years ago

5 0

Answer:

x = 3

Step-by-step explanation:

x + y = 21

y = 6x

Since y = 6x, this is added to the equation above

x + 6x = 21

6x + x = 7x

7x = 21

/7 /7

x = 3

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