3 X-1/5 X=7/2
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3 X-1/5 X=7/2
3 X-1/5 X=7/2
3 X-1/5 X=7/2
(3-1/5)X=7/2
14/5X=7/2
X=7/2÷14/5
X=5/4
15x/5-x/5=7/2
14x/5=7/2
x=5/4
14/5x=7/2
x=5/4
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