
Mark M. answered 12/17/17
Tutor
5.0
(278)
Mathematics Teacher - NCLB Highly Qualified
10 - d = 19
10 = 19 + d add d to both sides
-9 = d subtract 19 from both sides
6q - 4 = - 16
6q = -12 add 4 to both sides
q = -2 divide both sides by 6