0.5(62+x)=37 x/7+3*0.9=4 3(0.72-x+1)=4.8

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/04 16:25:53
0.5(62+x)=37 x/7+3*0.9=4 3(0.72-x+1)=4.8

0.5(62+x)=37 x/7+3*0.9=4 3(0.72-x+1)=4.8
0.5(62+x)=37 x/7+3*0.9=4 3(0.72-x+1)=4.8

0.5(62+x)=37 x/7+3*0.9=4 3(0.72-x+1)=4.8
0.12

0.5(62+x)=37
62+x=74
x=74-62
x=12
x/7+3*0.9=4
x/7+2.7=4
x/7=1.3
x=9.1
3(0.72-x+1)=4.8
0.72-x+1=1.6
1.72-x=1.6
x=0.12
祝学习进步,望采纳...

0.5(62+x)=37
x=37÷0.5-62=12
x/7+3*0.9=4
x=(4-2.7)×7=9.1
3(0.72-x+1)=4.8
x=-(4.8÷3-1.72)=0.12

  0.5(62+x)=37
62+x=74
  x=12

  x/7+3*0.9=4
x/7+2.7=4
  x/7=1.3
  x=9.1

  3(0.72-x+1)=4.8
1.72-x=1.6
  x=0.12

0.5(62+x)=37
62+x=37÷2
62+x=74
x=74-62
x=12

x/7+3*0.9=4
x/7+2.7=4
x/7=4-2.7
x/7=1.3
x=7*1.3
x=9.1

3(0.72-x+1)=4.8
1.72-x=4.8/3
1.72-x=1.6
x=1.72-1.6
x=0.12