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Snowcat [4.5K]
3 years ago
5

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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never [62]

9514 1404 393

Answer:

  7 cm, 4.4 cm

Step-by-step explanation:

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