方程!1(3/8)x+(5/8)x*(2/3)+55=(1+1/4)x (1+1/4)X-3/8*X-(1-3/8)*2/3*X=55

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方程!1(3/8)x+(5/8)x*(2/3)+55=(1+1/4)x (1+1/4)X-3/8*X-(1-3/8)*2/3*X=55

方程!1(3/8)x+(5/8)x*(2/3)+55=(1+1/4)x (1+1/4)X-3/8*X-(1-3/8)*2/3*X=55
方程!1
(3/8)x+(5/8)x*(2/3)+55=(1+1/4)x
(1+1/4)X-3/8*X-(1-3/8)*2/3*X=55

方程!1(3/8)x+(5/8)x*(2/3)+55=(1+1/4)x (1+1/4)X-3/8*X-(1-3/8)*2/3*X=55
(3/8)x+(5/8)x*(2/3)+55=(1+1/4)x
(3/8+5/12-5/4)x=-55
(-11/24)x=-55
x=120
(1+1/4)X-3/8*X-(1-3/8)*2/3*X=55
(5/4-3/8-5/12)x=55
(11/24)x=55
x=120

dui

1、
(3/8)*x+(5/8)x*(2/3)+55=(1+1/4)x
(3/8+5/12-1+1/4)*x+55=0
即:(-11/24)*x+55=0
(-11/24)*x=-55
解得:x=120
2、
(1+1/4)*X-3/8*X-(1-3/8)*2/3*X=55
(5/4-3/8-5/12)*x=55
即:
(11/24)*x=55
解得:
x=120
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如下:(3/8)x+(5/8)x*(2/3)+55=(1+1/4)x
(3/8+5/12-5/4)x=-55
(-11/24)x=-55
x=120
(1+1/4)X-3/8*X-(1-3/8)*2/3*X=55
(5/4-3/8-5/12)x=55
(11/24)x=55
x=120