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Linear and Absolute-Value Equations, Inequalities, and Systems

Quick questions on Systems of linear equations - B.E.S.T. Algebra 1 EOC

3short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.

What is q1?
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Solve y=x2y = x - 2 and 2x+y=102x + y = 10. [2 points]
What is q2?
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Two lines have the same slope but different yy-intercepts. How many solutions? [1 point]
What is sign errors in elimination?
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Subtracting equations flips every sign in the subtracted equation; line them up carefully.

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