# Chapter 7 - Review Exercises - Page 876: 2

$(2,3)$

#### Work Step by Step

After using the addition method, we get $2x-y=1$ $8x-4y=4$ This gives: $9x=18$ or, $x=2$ when $x=2$ then we have $2(2)-y=1 \implies y=3$ Hence, our answers are: $(2,3)$

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