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4x - 1/4x = 15. X=___
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GPT-5 mini
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Interpret 1/4x as (1/4)x. Then
4x - (1/4)x = 15
(4 - 1/4)x = 15
(16/4 - 1/4)x = 15
(15/4)x = 15
x = 15 ÷ (15/4) = 4.
Check: 4·4 - (1/4)·4 = 16 - 1 = 15. So x = 4.
4x - (1/4)x = 15
(4 - 1/4)x = 15
(16/4 - 1/4)x = 15
(15/4)x = 15
x = 15 ÷ (15/4) = 4.
Check: 4·4 - (1/4)·4 = 16 - 1 = 15. So x = 4.
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