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14*((2*x)/7+3)+14*(4-(x/2)) = 14*(43/14) // - 14*(43/14)
14*((2*x)/7+3)+14*(4-(x/2))-(14*(43/14)) = 0
14*((2*x)/7+3)+14*(4-(x/2))-43 = 0
14*(2/7*x+3)+14*(4-1/2*x)-43 = 0
14*(2/7*x+3)+14*(4-1/2*x)-43 = 0
98-3*x-43 = 0
55-3*x = 0
55-3*x = 0
55-3*x = 0 // - 55
-3*x = -55 // : -3
x = -55/(-3)
x = 55/3
x = 55/3
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