Twice the sum of a number and 7 is equal to 3

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asked Jun 10, 2018 66.0k views

1 Answer

JGrubb · Answer 1 · 2018-06-13T23:28:03+0000

Let n = the number.

Twice the sum of a number and 7 = 3 would be 2(n+7) = 3. Divide by 2 on both sides to get n+7 = 3/2. Then subtract 7 from both sides to isolate the variable n.

n = 3/2 - 7. N = -5.5 or -11/2

Twice the sum of a number and 7 is equal to 3

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