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3(x+5)=4(x-1)
3x+15=4x-4
-x=-19
x=19
5/2+2/3=2/3x-1/2x
10/6+4/6=4/6x-3/6x
14/6=1/6x
(14/6)÷(1/6)=x
(14/6)x6=x
14=x