解方程:3乘以(x-7)=0.6

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解方程:3乘以(x-7)=0.6
解方程:3乘以(x-7)=0.6

解方程:3乘以(x-7)=0.6
3乘以(x-7)=0.6
x-7=0.6÷3
x-7=0.2
x=0.2+7
x=7.2

7.2

3x-21=0.6
3x=21+0.6
3x=21.6
x=21.6/3
=7.2

X=7.2

3*(x-7)=0.6
x-7=0.2
x=7.2

7.2

x=7.2
3*0.2=0.6
7.2-7=0.2

3(x-7)=0.6
x-7=0.6/3
x=(0.6/3)+7
x=7.2

方程两边同除以3得:x - 7 = 0.2
两边同加7得:x = 7.2

3x=21.6 x=7.2

x-7=0.6÷3
x-7=0.2
x=0.2+7
x=7.2

3X-21=0.6
3X=21.6
X=7.2

3(x-7)=0.6
x-7=0.2
x=0.2+7
x=7.2

7.2

7.2

3乘以(x-7)=0.6
3x—21=0.6
3x=21.6
x=7.2

3(x-7)=0.6
x-7=0.6/3
x-7=0.2
x=7+0.2
x=7.2
答案为7.2

等于7.2

3乘以(x-7)=0.6
x-7=0.6÷3
x-7=0.2
x=0.2+7
x=7.2


3×(x-7)=0.6
3x-21=0.6
3x=21.6
x=21.6÷3
得:
x=7.2

3(x-7)=0.6
3x-21=0.6
3x=21+0.6
3x=21.6
x=21.6/3
=7.2