1.

Five less than 3 times a number is -20. Find the number.

Answer»

Let the required number = x 

3 times the number = 3x 

5 less than 3 times the number = 3x – 5 

According to statement : 

3x – 5 = -20 

=> 3x = -20 + 5 

=> 3x = -15 

=> x = -5 

Required number = -5



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