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x in (-oo:+oo)
(-7*x)/2-((2*(4*x-5))/3) = 0
(-2/3)*(4*x-5)+(-7*x)/2 = 0
(-7*x)/2-2/3*(4*x-5) = 0
(-2/3*2*(4*x-5))/2+(-7*x)/2 = 0
-2/3*2*(4*x-5)-7*x = 0
20/3-37/3*x = 0
(20/3-37/3*x)/2 = 0
(20/3-37/3*x)/2 = 0 // * 2
20/3-37/3*x = 0
20/3-37/3*x = 0 // - 20/3
-37/3*x = -20/3 // : -37/3
x = -20/3/(-37/3)
x = 20/37
x = 20/37
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