the sum of three consecutive multiples of 7is777. find these multiples
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7x+1+7x+2+7x+3=777
21x=777
x=11/3
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Let the numbers be x, x+7, x+14
x+x+7+x+14 = 777
3x+21 = 777
x = 777 - 21 / 3
= 756 / 3 = 252
the numbers are 252, 259, 266
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