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Mathematics 17 Online
OpenStudy (anonymous):

7 = -13 + d

OpenStudy (anonymous):

Add 13 both the sides..

OpenStudy (anonymous):

7 + 13 = -13 + 13 + d

OpenStudy (anonymous):

Now find d..

OpenStudy (anonymous):

alright so first we gotta isolate the variable add 13 to both sides \[7+13=-13+13+d\]\[20=d\]

OpenStudy (anonymous):

#yourewelcome

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