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x in (-oo:+oo)
(3/8)*(x+8) = (3/4)*(x+5)+1/8 // - (3/4)*(x+5)+1/8
(3/8)*(x+8)-((3/4)*(x+5))-(1/8) = 0
(3/8)*(x+8)+(-3/4)*(x+5)-1/8 = 0
3/8*(x+8)-3/4*(x+5)-1/8 = 0
(3/8*8*(x+8))/8+(-3/4*8*(x+5))/8-1/8 = 0
3/8*8*(x+8)-3/4*8*(x+5)-1 = 0
-3*x-6-1 = 0
-3*x-7 = 0
(-3*x-7)/8 = 0
(-3*x-7)/8 = 0 // * 8
-3*x-7 = 0
-3*x-7 = 0 // + 7
-3*x = 7 // : -3
x = 7/(-3)
x = -7/3
x = -7/3
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