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When a number increased by 4 is doubled the result is the same as when the number is increased by 20 find the answer?
Wiki User
∙ 10y ago
Suppose the number is N.
Then (N + 4)*2 = N + 20
that is, 2N + 8 = N + 20
subtracting N from both sides gives: N + 8 = 20
subtracting 8 from both sides gives: N = 12.
Wiki User
∙ 10y ago
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