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What is the value of x in 5x - 7 = y, if y =8

User Haff
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2 Answers

26 votes
26 votes

Answer:

The value of x is 3.

Explanation:

5x-7=y

5x-7=8

5x=8+7

5x=15

x=15/5

x=3

User David Dehghan
by
2.8k points
17 votes
17 votes

Answer: x = 3

To get that answer, we replace y with 8 and then isolate x.

5x-7 = y

5x-7 = 8

5x = 8+7

5x = 15

x = 15/5

x = 3

User Brandon Pugh
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2.9k points