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Ilia_Sergeevich [38]
3 years ago
8

When seven times a number is deceased by 3, the result is 25. What is the number?

Mathematics
2 answers:
zepelin [54]3 years ago
6 0

7n-3= 25

7n-3(+3)= 25(+3)

(7n= 28)/7

n=4

fiasKO [112]3 years ago
4 0

seven times a number: 7x

is deceased by 3: -3

the result is 25: = 25

Equation:

7x - 3 = 25

Steps:

7x - 3 = 25

7x - 3 + 3 = 25 + 3

7x = 28

7x/7 = 28/7

x=4

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