How do you solve 39 - 12w = 7 - 16w3912w=716w?

1 Answer
Apr 8, 2016

w = -8w=8

Explanation:

Rearrange the equation so you have ww's on one side and normal numbers (constants) on the other.

39 - 12w = 7 - 16w3912w=716w
39 - 7 - 12w = -16w39712w=16w
39 - 7 = - 16w + 12w397=16w+12w

Simplify this to

32 = -4w32=4w

and divide both sides by 44,

32/4 = (-4w)/4324=4w4

8 = -w8=w

Therefore, if 8 = -w8=w, then -8 = w8=w.