Answer:
d = -8.9
Explanation:
-9.39 - 3.4d = -1.1d + 11.08
-9.39 = 3.4d -1.1d + 11.08
-9.39 = 2.3d + 11.08
-9.39 - 11.08 = 2.3d
-20.47 = 2.3d
d = -20.47/2.3
d=-8.9
Isolate the d variable.
-9.39 -2.3d= 11.08
-2.3d= 20.47
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