-12
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-10 = -2 + d
-10 + 2 = -2 + 2 + d adding 2 to both sides.
-8 = 0 + d by simplifying
-8 = d or d = -8 by the additive identity property.
If: df+10f = 3 Then: f(d+10) = 3 And: d = 3/f -10
d = 2
4
z=-16 :) the reason is to get 2 you need -6/-3 and 10+(-16)=-6 :) -Trevor Thompson, AZ :D
-d + 2 = 5(- 2 from both sides)-d = 3(x both sides by -1)d = -3