## College Algebra (11th Edition)

$x=-8$
$2x+7=x-1$ subtract x from both sides $x+7=-1$ subtract 7 from both sides $x=-8$ Check: $2x+7=x-1$ substitute (-8) for x $2\times(-8)+7=(-8)-1$ multiply first $(-16)+7=(-8)-1)$ now add/subtract $(-9)=(-9)$ statement is true;hence, the solution is true