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3/10-1/2x+2/5=-1/5+11/3+3/10x
-1/2x+3/10+4/10=-1/5x+11/10+3/10x
-1/2x+7/10=-2/10x+11/10+3/10x
-1/2x-1/10x=11/10-7/10
-5/10x-1/10x=4/10
-6/10x=4/10 /: (-6/10)
x=-2/3