Ten two-variable systems with whole-number solutions, solvable by substitution or elimination, plus a key with each (x, y) pair.
Scroll to see all 10 problems and the answer key on its own page. Printing includes every page.
Each system is constructed from a chosen solution point, so elimination and substitution both land on clean integers. Great as mixed practice once both methods have been taught — students can pick their method and still check against one key.
Students shaky on the skill itself? Send them to the free lesson: Systems of Equations — explained step by step.
Want this in multiple choice? Harder numbers? 30 versions?
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