X = 400
X + X/4 = 400 - 2X
(4X + X) / 4 = 400 - 2X
4X + X = 4 (400 - 2X)
5X = 1600 - 2X
5X + 2X = 1600
7X = 1600
X = 1600/7
X = 228.5
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X = 400
X + X/4 = 400 - 2X
(4X + X) / 4 = 400 - 2X
4X + X = 4 (400 - 2X)
5X = 1600 - 2X
5X + 2X = 1600
7X = 1600
X = 1600/7
X = 228.5