## Prealgebra (7th Edition)

$x\approx1.43$
$-13x-9.4=-0.4x+8.6\rightarrow$ add 0.4x and 9.4 to each side $-13x-9.4+0.4x+9.4=-0.4x+8.6+0.4x+9.4\rightarrow$ simplify $-12.6x=18\rightarrow$ divide both sides by -12.6 $-12.6x\div-12.6=18\div-12.6\rightarrow$ simplify $x\approx1.43$