(χ-12)÷4=4.5怎么列方程
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(χ-12)÷4=4.5怎么列方程
(χ-12)÷4=4.5怎么列方程
(χ-12)÷4=4.5怎么列方程
(χ-12)÷4=4.5 X-12=4.5*4 X=18+12 X=30
(χ-12)÷4=4.5; x-12=4.5*4; x=12+18=30
(χ-12)÷4=4.5; x-12=4.5*4; x=12+18=30