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13-((3/4)*x) = 37 // - 37
13-((3/4)*x)-37 = 0
(-3/4)*x-37+13 = 0
-3/4*x-24 = 0 // + 24
-3/4*x = 24 // : -3/4
x = 24/(-3/4)
x = -32
x = -32
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