PSAT/NMSQT Practice Test 2 for Assistive Technology – Math ...

Substituting negative 2 for y in the second equation of the system gives x minus 10 times negative 2 equals 16, which simplifies to x plus 20 equals 16, or x equals negative 4. Incorrect answer Choices A, B, and D are incorrect because there is no solution to the system for which the x coordinate is one of the numbers given in these choices. ................
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