7-4(d-3)=23

solve this for me please
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Problem: 7-4(d-3)=23
solve this for me please

7 - 4(d - 3) = 23
7 - 4(d - 3) = 23
7 - 4d + 12 = 23
-4d + 19 = 23
-4d + 19 - 19 = 23 - 19
-4d = 4
-4d/-4 = 4/-4
d = -1

Check it.

7 - 4(d - 3) = 23
7 - 4(-1 - 3) = 23
7 - 4(-4) = 23
7 - (-16) = 23
7 + 16 = 23
23 = 23

Answer: d = -1

 

by Level 11 User (78.4k points)

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