Justin and Sabrina at Pine Grove Elementary have 50 pencils combined. Justin has 8 more than twice as many pencils as Sabrina. How many pencils does Sabrina have?
Step-by-step reasoning process below:
14
Let's say Sabrina has p number of pencils.

If Justin has 8 more than twice as many pencils as Sabrina, he has 2 * p + 8 = 2p + 8.

Together, Justin and Sabrina has p + (2p + 8) = 50.

This is equal to 3p = 50 - 8.

3p = 42.

The number of pencils that Sabrina has is p = 42 / 3.

Sabrina has p = 14 pencils.

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Final answer: 14