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Alinara [238K]
3 years ago
8

3. Three less than twice a number is 15. What is the number?

Mathematics
2 answers:
Sliva [168]3 years ago
5 0

Answer:

x =9

Step-by-step explanation:

Let x = be the number

2x -3 =15

Add 3 to each side

2x-3 +3 =15 +3

2x = 18

Divide each side by 2

2x/2 =18/2

x =9

Hunter-Best [27]3 years ago
4 0

Answer: x=-6

Step-by-step explanation:

Three (3) less than (-) twice (2) a number (x) is (=) 15

3-2x=15

-2x=15-3\\-2x=12\\x=\frac{12}{-2}\\ x=-6

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