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解:解方程, 此方程的解为x = 5
x - 0.54 x = 2.3
(1 - 0.54)x = 2.3
(1 - 54/100)x = (2×10+3)/10
(1 - 27/50)x = 23/10
(50/50 - 27/50)x = 23/10
(23/50)x = 23/10
x = 23/10 ÷ 23/50
x = 23/10 × 50/23
∴x = 5
答:此方程的解为x = 5
x - 0.54 x = 2.3
(1 - 0.54)x = 2.3
(1 - 54/100)x = (2×10+3)/10
(1 - 27/50)x = 23/10
(50/50 - 27/50)x = 23/10
(23/50)x = 23/10
x = 23/10 ÷ 23/50
x = 23/10 × 50/23
∴x = 5
答:此方程的解为x = 5
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