13-09-2017
Mathematics

contestada

What is the answer plz show your work
7-4(d-3)=23

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deeptee deeptee

23-09-2017

7-4 (d-3)=23
7-4d+12=23 **multiply -4 with (d-3)***
7+12-4d=23
19-4d=23
-4d=23-19
-4d=4
d=4÷-4
d= -1

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