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-23/4 = 2*x+(1/2)*x-6 // - 2*x+(1/2)*x-6
6-(2*x)-((1/2)*x)-23/4 = 0
(-1/2)*x-2*x-23/4+6 = 0
1/4-5/2*x = 0 // - 1/4
-5/2*x = -1/4 // : -5/2
x = -1/4/(-5/2)
x = 1/10
x = 1/10
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