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207/5 = (4/5)*x+4*x+3 // - (4/5)*x+4*x+3
207/5-((4/5)*x)-(4*x)-3 = 0
(-4/5)*x-4*x+207/5-3 = 0
192/5-24/5*x = 0 // - 192/5
-24/5*x = -192/5 // : -24/5
x = -192/5/(-24/5)
x = 8
x = 8
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