Question

For each value of w, determine whether it is a solution to -13=
W
9
27

Answer 1

`- 13 = (w)/(9) - 6 \\ - 13 + 6 = (w)/(9) \\ - 7 = (w)/(9) \\ w = - 63`

so only -63 is the solution, the rest three are NOT solution for this equation.