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2014-05-25T14:49:57+03:00
A)14x+2x=-16
16x=-16,x=-1
b) 5x-2x=6
3x=6
x=2
c)x+x=4
2x=4
x=2
d) 9x-3x=31-13=18
6x=18
x=3
e)2x=29+3
2x=32
x=16