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Jlenok [28]
3 years ago
15

3 (5x + 7) = 75 what is x?

Mathematics
2 answers:
garik1379 [7]3 years ago
8 0

Answer:

3 (5x+7) = 75

15x + 21 = 75

15x + 21 - 21 = 75 - 21

15x = 54

x = 3.6

Step-by-step explanation:

Elodia [21]3 years ago
3 0

Answer:

x = 3.6

Step-by-step explanation:

divide both sides by 3

5 x + 7 = 25

subtract 7 from both sides

5 x = 18

divide both sides by 5

x = 3.6

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