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6 January, 20:47
Solve equation 12d-9=15d+9
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Reese Higgins
6 January, 21:29
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D = 0.6 repeating
12d-9 = 15d+9
get constants alone to one side
move 15d and add with 12d (you can only combine like terms.)
27d-9=9
cange - 9 to plus 9 so
27d-9=9
+9+9
9+9 = 18
27d=18
27 divided by 27 carry to other side
27/27d = 18/27
d=0.6 repeaing
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