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(4*x)/5-(x/2)+3+4 = 47/10 // - 47/10
(4*x)/5-(x/2)-(47/10)+3+4 = 0
(4*x)/5-(x/2)-47/10+3+4 = 0
3/10*x+23/10 = 0 // - 23/10
3/10*x = -23/10 // : 3/10
x = -23/10/3/10
x = -23/3
x = -23/3
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