(48%+2)x=12.4 15%/(x+1)=12.5%

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(48%+2)x=12.415%/(x+1)=12.5%(48%+2)x=12.415%/(x+1)=12.5%(48%+2)x=12.415%/(x+1)=12.5%(48%+2)x=12.42.4

(48%+2)x=12.4 15%/(x+1)=12.5%
(48%+2)x=12.4
15%/(x+1)=12.5%

(48%+2)x=12.4 15%/(x+1)=12.5%
(48%+2)x=12.4
2.48x=12.4
x=12.4÷2.48
x=5

2.48 x =12.4
x =12.4 /2.48
x =5

(48%+2)x=12.4
2.48x=12.4
x=5

48%=0.48 即2.48x=12.4 得x=5

2.48x=12.4
x=12.4/2.48
x=5

0.15=0.125(x+1) x=0.2