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1/4-((3/8)*x)-(1/8) = 0
(-3/8)*x+1/4-1/8 = 0
1/8-3/8*x = 0 // - 1/8
-3/8*x = -1/8 // : -3/8
x = -1/8/(-3/8)
x = 1/3
x = 1/3
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