解方程11/12×+120%×=6.511/12×+120%×=6.511/12×-120%=6.5

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解方程11/12×+120%×=6.511/12×+120%×=6.511/12×-120%=6.5
解方程11/12×+120%×=6.5
11/12×+120%×=6.5
11/12×-120%=6.5

解方程11/12×+120%×=6.511/12×+120%×=6.511/12×-120%=6.5
11/12x=1.2+6.5
x=7.7 ÷ 11/12
x=8.4