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4 years ago

Five times a number minus 7 is thirteen

Mathematics

2 answers:

SVEN [57.7K]4 years ago

5 0

Answer:

x = 4

Steps:

5x - 7 = 13

First add 7 to both sides

5x = 20

Next divide the coefficient, 5, on both sides

x = 4

Check:

Substitute 4 for x

5x - 7 = 13

5(4) - 7 = 13

Solve

20 - 7 = 13

13 = 13

jonny [76]4 years ago

3 0

5n-7=13 n= 4 so the number is 4

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