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解:解方程, 此方程的解为x = 9/10,【即x = 0.9】
5.9 × 0.3 - 1.9x = 0.06
(5×10+9)/10 × 3/10 - [(1×10+9)/10]x = 6/100
59/10 × 3/10 - (19/10)x = 3/50
177/100 - (19/10)x = 3/50
(19/10)x = 177/100 - 3/50
(19/10)x = 177/100 - 6/100
(19/10)x = 171/100
x = 171/100 ÷ 19/10
x = 171/100 × 10/19
x = 9/10
∴x = 0.9
答:此方程的解为x = 9/10,【即x = 0.9】
5.9 × 0.3 - 1.9x = 0.06
(5×10+9)/10 × 3/10 - [(1×10+9)/10]x = 6/100
59/10 × 3/10 - (19/10)x = 3/50
177/100 - (19/10)x = 3/50
(19/10)x = 177/100 - 3/50
(19/10)x = 177/100 - 6/100
(19/10)x = 171/100
x = 171/100 ÷ 19/10
x = 171/100 × 10/19
x = 9/10
∴x = 0.9
答:此方程的解为x = 9/10,【即x = 0.9】
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