nannagarvey
nannagarvey
20-01-2017
Mathematics
contestada
-2x-3=8
-2x+4=22
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lop31
lop31
20-01-2017
-2x-3=8
-2x=8+3
-2x=11
x=-11/2
-2x+4=22
-2x=22-4
-2x=18
x=-9
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