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03-09-2020
Mathematics

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Solve for n 19 + 10n = 7n - 20

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wegnerkolmp2741o wegnerkolmp2741o

03-09-2020

Answer:

n = -13

Step-by-step explanation:

19 + 10n = 7n - 20

Subtract 7n from each side

19 + 10n-7n = 7n-7n - 20

19+3n = -20

Subtract 19 from each side

19+3n -19 = -20-19

3n = -39

Divide each side by 3

3n/3 = -39/3

n = -13

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