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06-04-2017
Mathematics

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2n +9+5n=30 need help on this

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06-04-2017

2n+9+5n=30 combine like terms on left side

7n+9=30 subtract 9 from both sides

7n=21 divide both sides by 7

n=3

Answer Link

06-04-2017

n = 3

add like terms: 7n + 9 = 30
subtract 9 from both sides: 7n = 21
divide 7 from both sides
n = 3

Answer Link

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