0.6x+5.28=63.2x+1.7x=9.86.3x-3.9x=2.88.

zhe012022-10-04 11:39:541条回答

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zjwl2006 共回答了27个问题 | 采纳率92.6%
0.6x+5.28=6
0.6x-5.28=6-5.28,
0.6x=0.72,
0.6x÷0.6=0.72÷0.6,
x=1.2;

3.2x+1.7x=9.8,
4.9x=9.8,
x=2;

6.3x-3.9x=2.88
2.4x=2.88,
2.4x÷2.4=2.88÷2.4,
x=1.2.
1年前

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