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(3/4)*(8*x-5) = (2/3)*(4*x-9) // - (2/3)*(4*x-9)
(3/4)*(8*x-5)-((2/3)*(4*x-9)) = 0
(3/4)*(8*x-5)+(-2/3)*(4*x-9) = 0
3/4*(8*x-5)-2/3*(4*x-9) = 0
3/4*(8*x-5)-2/3*(4*x-9) = 0
10/3*x+9/4 = 0
10/3*x+9/4 = 0
10/3*x+9/4 = 0 // - 9/4
10/3*x = -9/4 // : 10/3
x = -9/4/10/3
x = -27/40
x = -27/40
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