.3x-4.9=5.2x+20.52
3x-2x=20.52+4.9
x=25.428.3x-4.9=5.2x+20.521.5（x+3.3）0.5=11.63.5x+4.7=9.5+1.1x
8.3x-4.9=5.2x+20.52
8.3x-2x=20.52+4.9
x=8.23.5x+4.7=9.5+1.1x
3.5x-1.1x=9.5-4.
2.4x=4.8
x=2
你第二个方程好象写得有问题
8.3x-4.9=5.2x+20.52
8.3x-4.9=5.2x+20.52
怎么写
怎么写
数学人气：218 ℃时间：2019-12-29 16:48:48
优质解答
很高兴能够在这里回答你的问题,应该为：
.3x-4.9=5.2x+20.52
3x-2x=20.52+4.9
x=25.428.3x-4.9=5.2x+20.521.5（x+3.3）0.5=11.63.5x+4.7=9.5+1.1x
.3x-4.9=5.2x+20.52
3x-2x=20.52+4.9
x=25.428.3x-4.9=5.2x+20.521.5（x+3.3）0.5=11.63.5x+4.7=9.5+1.1x
我来回答
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