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a in (-oo:+oo)
1065/56-((1/2)*a) = (13/7)*((37/8)*a+3/4) // - (13/7)*((37/8)*a+3/4)
1065/56-((13/7)*((37/8)*a+3/4))-((1/2)*a) = 0
(-13/7)*((37/8)*a+3/4)+(-1/2)*a+1065/56 = 0
1065/56-13/7*(37/8*a+3/4)-a/2 = 0
(-13/7*2*56*(37/8*a+3/4))/(2*56)+(56*(-a))/(2*56)+(2*1065)/(2*56) = 0
56*(-a)-13/7*2*56*(37/8*a+3/4)+2*1065 = 0
2130-1018*a-156 = 0
1974-1018*a = 0
(1974-1018*a)/(2*56) = 0
(1974-1018*a)/(2*56) = 0 // * 2*56
1974-1018*a = 0
1974-1018*a = 0 // - 1974
-1018*a = -1974 // : -1018
a = -1974/(-1018)
a = 987/509
a = 987/509
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