Answer:
d = -8
Step-by-step explanation:
Isolate the variable, d. Note the equal sign, what you do to one side, you do to the other. Divide -4 from both sides of the equation:

d = -8 is your answer.
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Answer:
I think it would be -4x-6y+12
$9.75
Step-by-step explanation:
total amount _ Binoculars amount
$170_$105=$ 65
therefore before discount boots cost $65
After tax boots cost=15/100 ×$65
15/20× 13
195/20
=$9.75