3.4x-0.24×2=2.24
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解:解方程, 此方程的解为x = 4/5,【即x = 0.8】
3.4x - 0.24 × 2 = 2.24
[(3×10+4)/10]x - 24/100 × 2 = (2×100+24)/100
(34/10)x - 6/25 × 2 = 224/100
(17/5)x - 12/25 = 56/25
(17/5)x = 56/25 + 12/25
(17/5)x = 68/25
x = 68/25 ÷ 17/5
x = 68/25 × 5/17
x = 4/5
∴x = 0.8
答:此方程的解为x = 4/5,【即x = 0.8】
3.4x - 0.24 × 2 = 2.24
[(3×10+4)/10]x - 24/100 × 2 = (2×100+24)/100
(34/10)x - 6/25 × 2 = 224/100
(17/5)x - 12/25 = 56/25
(17/5)x = 56/25 + 12/25
(17/5)x = 68/25
x = 68/25 ÷ 17/5
x = 68/25 × 5/17
x = 4/5
∴x = 0.8
答:此方程的解为x = 4/5,【即x = 0.8】
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