1.

The sum of three consecutive multiples of 7 is - 231. Find three multiples ​

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Answer

Let the three CONSECUTIVE MULTIPLES of 7 be 7x, 7x+7 and

7x+14.

Here, it is GIVEN that

7x+7x+7+7x+14= -231

Now,

7x+7x+7x+14+7= -231

21x+21= -231

21x= -231-21

21x= -252

x= -252÷21

x= -12

Therefore the three multiples are:

=>7x= 7×(-12)= -84

=>7x+7= 7(-12)+7= -77

=> 7x+14= 7(-12)+14= -70

Answer: -84, -77 and -70


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