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(5/6)*x+5*x+2/3 = -13/33 // + -13/33
(5/6)*x+5*x+2/3-(-13/33) = 0
(5/6)*x+5*x+2/3+13/33 = 0
35/6*x+35/33 = 0 // - 35/33
35/6*x = -35/33 // : 35/6
x = -35/33/35/6
x = -2/11
x = -2/11
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