问题
解答题
0.6x+5.28=6
3.2x+1.7x=9.8
6.3x-3.9x=2.88.
答案
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.
0.6x+5.28=6
3.2x+1.7x=9.8
6.3x-3.9x=2.88.
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.