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05-04-2020
Mathematics

contestada

Seven times a number plus the sum of three and twice a number is 30.

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05-04-2020

Answer:

A number is 3

Step-by-step explanation:

x*7+(3+x*2)=30

9x+3=30

9x=27

x=3

Answer Link

18-01-2022

Answer:

n=3

Step-by-step explanation:

7n+2n+3=30;n=3

Answer Link

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