
X减1/5X等于2/3?
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解:解方程, 此方程的解为x = 5/6
x - (1/5)x = 2/3
(5/5)x - (1/5)x = 2/3
(4/5)x = 2/3
x = 2/3 ÷ 4/5
x = 2/3 × 5/4
∴x = 5/6
答:此方程的解为x = 5/6
x - (1/5)x = 2/3
(5/5)x - (1/5)x = 2/3
(4/5)x = 2/3
x = 2/3 ÷ 4/5
x = 2/3 × 5/4
∴x = 5/6
答:此方程的解为x = 5/6
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