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rusak2 [61]
4 years ago
7

What is the answer to -7d-22=4d?

Mathematics
1 answer:
Juliette [100K]4 years ago
4 0
First add 7d to both sides:
-22 = 11d
Now divide by 11 both sides
-2 = d

You can work on either side of the equation, I used the right side for the variables because it was easier to add to positive numbers than dealing with negative numbers on the left side:
 -7d -4d = 22
-11d =22
d = -2 

either way you get the same answer :)
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Using symmetry concepts, it is found that there is a line of symmetry at x = 50, option D.

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A similar problem is given at brainly.com/question/16679081

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