问题
解答题
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答案
①8-0.52x=0.27×20,
8-0.52x=5.4,
8-0.52x+0.52x=5.4+0.52X,
5.4+0.52x=8,
5.4+0.52x-5.4=8-5.4,
0.52x=2.6,
0.52x÷0.52=2.6÷0.52,
x=5;
②X+0.8X=1.98,
1.8x=1.98,
1.8x÷1.8=1.98÷1.8,
x=1.1.
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①8-0.52x=0.27×20,
8-0.52x=5.4,
8-0.52x+0.52x=5.4+0.52X,
5.4+0.52x=8,
5.4+0.52x-5.4=8-5.4,
0.52x=2.6,
0.52x÷0.52=2.6÷0.52,
x=5;
②X+0.8X=1.98,
1.8x=1.98,
1.8x÷1.8=1.98÷1.8,
x=1.1.