5x+0.3=7x-1.3怎么算?
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5x+0.3=7x-1.3怎么算?5x+0.3=7x-1.3怎么算?5x+0.3=7x-1.3怎么算?5X+0.3=7X-1.30.3+1.3=7X-5X2.6=2XX=1.3
5x+0.3=7x-1.3怎么算?
5x+0.3=7x-1.3怎么算?
5x+0.3=7x-1.3怎么算?
5X+0.3=7X-1.3
0.3+1.3=7X-5X
2.6=2X
X=1.3
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