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The sum of 7 times a number and 8 is equal to 9
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2 votes
The sum of 7 times a number and 8 is equal to 9

User Dphans
by
3.3k points

2 Answers

3 votes

Answer:

x = 1/7

Explanation:

7x + 8 = 9

-8 | -8 {isolate variable, same on both sides}

7x = 1

/7 | /7 {isolate variable, same on both sides}

x = 1/7

User Matiullah Karimi
by
3.9k points
1 vote

Answer:7n + 9 = 5

Explanation:

User Courtney Stephenson
by
3.3k points
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