2.4-2x+2(x-0.24)
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2.4-2x+2(x-0.24)2.4-2x+2(x-0.24)2.4-2x+2(x-0.24)2.4-2x+2(x-0.24)=2.4-2x+2x-0.48=2.4-0.48=1.92回答完毕~X/
2.4-2x+2(x-0.24)
2.4-2x+2(x-0.24)
2.4-2x+2(x-0.24)
2.4-2x+2(x-0.24)
=2.4-2x+2x-0.48
=2.4-0.48
=1.92
回答完毕~
X/0.24=2.4 x=2.4x0.24 x=0.576 3X+2.7-0.9=7.89 3x=7.89+0.9-2.7 3x=6.09 x=2.03 9.2X+0.8X=108 10x=108 x=10.8 2.
2.4-2x+2(x-0.24)
=2.4-2x+2x-0.48去括号
=1.92完了
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2.4-2x+2(x-0.24)
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