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-((1/6)*x)-4 = -283/72 // + -283/72
-((1/6)*x)-(-283/72)-4 = 0
(-1/6)*x+283/72-4 = 0
-1/6*x-5/72 = 0 // + 5/72
-1/6*x = 5/72 // : -1/6
x = 5/72/(-1/6)
x = -5/12
x = -5/12
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