
3/5Ⅹ十0.8=5.6?
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解:解方程, 此方程的解为x = 8
(3/5)Ⅹ 十 0.8 = 5.6
(3/5)x + 8/10 = (5×10+6)/10
(3/5)x + 4/5 = 56/10
(3/5)x + 4/5 = 28/5
(3/5)x = 28/5 - 4/5
(3/5)x = 24/5
x = 24/5 ÷ 3/5
x = 24/5 × 5/3
∴x = 8
答:此方程的解为x = 8
(3/5)Ⅹ 十 0.8 = 5.6
(3/5)x + 8/10 = (5×10+6)/10
(3/5)x + 4/5 = 56/10
(3/5)x + 4/5 = 28/5
(3/5)x = 28/5 - 4/5
(3/5)x = 24/5
x = 24/5 ÷ 3/5
x = 24/5 × 5/3
∴x = 8
答:此方程的解为x = 8
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0.6×+0.8=5.6
0.6×=4.8
×=8
0.6×=4.8
×=8
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