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1,8x-2,1x=3,6
-0,3x=3,6 //(-0,3)
x=-12
0,7x+ 1,1x-2,1x=0,6+3
-0.3x=3.6/:(-o.3)
x=-12
0,7x+1,1x-2,1x=0,6+3
-0,3x=3,6 /: (-0,3)
x= -1,2