Complete the following proof.

Given: 2x + 11 = 15

Prove: x = 2

Statements Reason

1. 2x + 11 = 15 1. Given

2. 2x = 4 2.

3. x = 2 3. Division Property of Equality

Find an equation for the nth term of the arithmetic sequence. a14 = - 33, a15 = 9

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