## College Algebra (10th Edition)

$x=-6$
Solve the equation: $2(x+3)-1=-7$ First, we add 1 to both sides: $2(x+3)-1+1=-7+1$ $2(x+3)=-6.$ Now we divide both sides by 2: $2(x+3)/2=-6/2$ $x+3=-3.$ Now, we subtract 3 from both sides: $x+3-3=-3-3.$ So, $x=-6.$