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(1/4)*x+1/2 = 4*((2/3)*x+3) // - 4*((2/3)*x+3)
(1/4)*x-(4*((2/3)*x+3))+1/2 = 0
(1/4)*x-4*((2/3)*x+3)+1/2 = 0
x/4-4*(2/3*x+3)+1/2 = 0
(-4*2*4*(2/3*x+3))/(2*4)+(2*x)/(2*4)+(1*4)/(2*4) = 0
2*x-4*2*4*(2/3*x+3)+1*4 = 0
4-58/3*x-96 = 0
-58/3*x-92 = 0
(-58/3*x-92)/(2*4) = 0
(-58/3*x-92)/(2*4) = 0 // * 2*4
-58/3*x-92 = 0
-58/3*x-92 = 0 // + 92
-58/3*x = 92 // : -58/3
x = 92/(-58/3)
x = -138/29
x = -138/29
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