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Rom4ik [11]
4 years ago
13

Alice solved the following equation:

Mathematics
2 answers:
max2010maxim [7]4 years ago
7 0
So
-18-3x=12
to get to -3x=12+-somthing
we must add 18 to both sides or
+18-18-3x=12+18
-3x=30
so 'The 6 should be 30 in step 2' is correct
x=-10
alexdok [17]4 years ago
5 0
The 6 should be 30 in step 2 because you have to add 18 to both sides to cancel out the -18.
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