Lesson: Basic Algebra - 07t01

Isolating Variables on Standardized Tests, continued

Let’s try one more question that might appear on test day:

Click on the oval to pick an answer, then click Continue.

If      what is the value of a?   -7 0 3 6 7

To answer this question, solve the first equation for b, then plug the result into the second equation to solve for a: The first equation:

Then plug in 2 for b in the second equation:

The answer that fits is the fourth choice. Back Next

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