One half the sum of y and 12 is 7

Question

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Answer 1

Another way to answer the question is to remove the half first by multiplying both sides by 2:

¹/₂(y + 12) * 2 = 7 * 2

y + 12 = 14

Subtract 12:

y + 12 - 12 = 14 - 12

y = 2

Answer 2

First convert the sentence into an equation:

1/2 (y+12) = 7

distribute the 1/2

1/2 y + 6 = 7

combine like terms (subtract 6 from both sides)

1/2 y = 1

isolate y by dividing both sides by 1/2

y = 2