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5x-12X8=24的方程的解

(5x-12)8=24 (5x-12)8÷8=24÷8 5x-12=3 5x-12+12=3+12 5x=15 5x÷5=15÷5 x=3

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(5x-12)X8=24 5x-12=24÷8 5x=3+12 x=3

(5x-12)X8=24 解: 5x-12=24÷8 5x-12=3 5x=15 x=3

(5x-12)=3 5x=3+12 5x=15 x=15÷5 x=3

解:5x-12=24÷8 5x=3+12 x=15÷5 x=3

解方程 (5Ⅹ-12)X8=24 5x-12=24÷8 5x-12=3 5x=3+12 5x=15 x=3

(5x-12)X8=24 40x-96=24 40x=96+24 40x=120 x=3

3X×6=5X, 18X-5X=0, 13X=0, X=0。

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