问题
解答题
9个0.6比x的2倍多2.7,求x?
答案
0.6×9-2x=2.7,
5.4-2x=2.7,
5.4-2x+2x=2.7+2x,
2x+2.7=5.4,
2x+2.7-2.7=5.4-2.7,
2x=2.7,
2x÷2=2.7÷2,
x=1.35.
9个0.6比x的2倍多2.7,求x?
0.6×9-2x=2.7,
5.4-2x=2.7,
5.4-2x+2x=2.7+2x,
2x+2.7=5.4,
2x+2.7-2.7=5.4-2.7,
2x=2.7,
2x÷2=2.7÷2,
x=1.35.