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3 years ago

11

Substitution method for 7x + 21y =42

1 answer:

ira [324]3 years ago

4 0

Answer:

(6,2)

Step-by-step explanation:

Use desmos

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Step-by-step explanation:

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Step-by-step explanation:

Question 3 can be re-written as:

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Step-by-step explanation:

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