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3.5 = (3/4)*x // - (3/4)*x
3.5-((3/4)*x) = 0
(-3/4)*x+3.5 = 0
3.5-3/4*x = 0 // - 3.5
-3/4*x = -3.5 // : -3/4
x = -3.5/(-3/4)
x = 4.66666667
x = 4.66666667
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