(x - 2 1/4) × 4/5 = 1
(x - 9/4) × 4/5 = 1
4/5x - 9/5 = 1
4x - 9 = 5
4x = 5 + 9
4x = 14
x = 7/2
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(x - 2 1/4) × 4/5 = 1
(x - 9/4) × 4/5 = 1
4/5x - 9/5 = 1
4x - 9 = 5
4x = 5 + 9
4x = 14
x = 7/2