Respuesta :
-243=-9(10+x)
Distribute property first
-243= -90-9x
Add -90 to both sides
-243=-90-9x
+9 =+90
-153=-9x
Divide both sides with -9
-153/-9=-9x/-9
And you left with x=17
Distribute property first
-243= -90-9x
Add -90 to both sides
-243=-90-9x
+9 =+90
-153=-9x
Divide both sides with -9
-153/-9=-9x/-9
And you left with x=17