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a in (-oo:+oo)
a-((5*(a-3))/8)-(2/3) = 2*a+6/4 // - 2*a+6/4
a-((5*(a-3))/8)-(2*a)-(2/3)-(6/4) = 0
(-5/8)*(a-3)+a-2*a-2/3-3/2 = 0
a-5/8*(a-3)-2*a-2/3-3/2 = 0
(-5/8*2*3*(a-3))/(2*3)+(2*3*a)/(2*3)+(-2*2*3*a)/(2*3)+(-2*2)/(2*3)+(-3*3)/(2*3) = 0
2*3*a-5/8*2*3*(a-3)-2*2*3*a-2*2-3*3 = 0
9/4*a-12*a-9-4+45/4 = 0
45/4-39/4*a-9-4 = 0
29/4-39/4*a-9 = 0
-39/4*a-7/4 = 0
(-39/4*a-7/4)/(2*3) = 0
(-39/4*a-7/4)/(2*3) = 0 // * 2*3
-39/4*a-7/4 = 0
-39/4*a-7/4 = 0 // + 7/4
-39/4*a = 7/4 // : -39/4
a = 7/4/(-39/4)
a = -7/39
a = -7/39
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