Appendix A - Review - A.8 Solving Equations - A.8 Assess Your Understanding - Page A70: 14

$1$

Adding $x$ to both sides and then subtracting 3 to both sides and combining the like term, we have $$ 3 - 2x = 2 - x \\ 3-2 x+x = 2 -x+x \\ 3-x=2\\ 3-x-3=2-3\\ -x=-1$$ Now, by multiplying both sides by $-1$, we obtain $$ x=1$$