零点五加六分之五x等于八分之七解方程怎么写
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解:解方程, 此方程的解为x = 9/20,【即x= 0.45】
零点五加六分之五x等于八分之七
0.5 + (5/6)x = 7/8
5/10 + (5/6)x = 7/8
1/2 + (5/6)x = 7/8
(5/6)x = 7/8 - 1/2
(5/6)x = 7/8 - 4/8
(5/6)x = 3/8
x = 3/8 ÷ 5/6
x = 3/8 × 6/5
x = 9/20
∴x = 0.45
答:此方程的解为x = 9/20,【即x= 0.45】
零点五加六分之五x等于八分之七
0.5 + (5/6)x = 7/8
5/10 + (5/6)x = 7/8
1/2 + (5/6)x = 7/8
(5/6)x = 7/8 - 1/2
(5/6)x = 7/8 - 4/8
(5/6)x = 3/8
x = 3/8 ÷ 5/6
x = 3/8 × 6/5
x = 9/20
∴x = 0.45
答:此方程的解为x = 9/20,【即x= 0.45】
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