3⼀5+x等于2.7怎么解?

2024-12-12 14:10:19
推荐回答(2个)
回答1:

3/5+x=2.7
0.6+x=2.7
x=2.1

回答2:

解:解方程, 此方程的解为x = 21/10,【即x = 2.1】
3/5 + x = 2.7
3/5 + x = (2×10+7)/10
3/5 + x = 27/10
x = 27/10 - 3/5
x = 27/10 - 6/10
x = 21/10
∴x = 2.1

答:此方程的解为x = 21/10,【即x = 2.1】