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3 years ago

How do you do simultaneous equations by the method or substitution?

Mathematics

1 answer:

ozzi3 years ago

5 0

Answer:

Here's the simplest example possible: let's say x + y = 3 and x - y = 1. Solve the second equation for x by adding y to both sides: (x - y) + y = 1 + y. So x = 1 + y. Take that value of x, and substitute it into the first equation given above (x + y = 3).

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Answer:

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Step-by-step explanation:

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3 years ago

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Answer:

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A pair of jeans cost $45 before the sale.

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How do you do simultaneous equations by the method or substitution?​

How do you do simultaneous equations by the method or substitution?