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3 years ago

10

The sum of a number times 3 and 7 equals 2

1 answer:

ella [17]3 years ago

7 0

3 x + 7 = 2
3 x = 2 - 7
3 x = - 5
x = - 5/3

3 ( -5/3) + 7 = - 15/3 + 7 = - 5 + 7 = 2

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