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2 years ago

10

5n+9=2n solve equation

1 answer:

julsineya [31]2 years ago

4 0

5n+9=2n

5n+9−2n=2n−2n

3n+9=0

3n+9−9=0−9

3n=−9

3n/3=−9/3

n=−3

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