4x+3×0.7=6.5

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4x+3×0.7=6.54x+3×0.7=6.54x+3×0.7=6.54x+3*0.7=6.54x+2.1=6.54x=6.5-2.14x=4.4x=4.4/4x=1.1全部展开收起解:4x+2.1

4x+3×0.7=6.5
4x+3×0.7=6.5

4x+3×0.7=6.5
4x+3*0.7=6.54x+2.1=6.54x=6.5-2.14x=4.4x=4.4/4x=1.1

收起

解:4x+2.1=6.5
4x=6.5-2.1
x=4.4÷4
x=1.1

1.1

1.1

6.5÷0.7÷3÷4=x

4x=4.4
x=1.1

4.4

4x=6.5-3×0.7

希望帮到你

4x加2.1等于6.5 6.5减2.1等于4.4在除以4等于1.1所以x等于1.1

4x=6.5-3×0.7
4x=4.4
x=4.4/4
x=1.1