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3/10 = (x-2)/4 // - (x-2)/4
3/10-((x-2)/4) = 0
(-1*(x-2))/4+3/10 = 0
(-1*10*(x-2))/(4*10)+(3*4)/(4*10) = 0
3*4-1*10*(x-2) = 0
32-10*x = 0
(32-10*x)/(4*10) = 0
(32-10*x)/(4*10) = 0 // * 4*10
32-10*x = 0
32-10*x = 0 // - 32
-10*x = -32 // : -10
x = -32/(-10)
x = 16/5
x = 16/5
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