x÷4=11解方程.5x-17=73解方程.6.1-x=4.5解方程.4x+16=100解方程.(x+2)÷5=6.2解

1个回答

  • x÷4=11

    X=11x4

    X=44

    5x一17=73

    5X=73+17

    X=90÷5

    X=18

    6.1一x=4·5

    x=6.1-4.5

    x=1.6

    4X+16=100

    4x=100一16

    x=84÷4

    X=21

    (x+2)÷5=6.2

    x+2=6.2x5

    x=31-2

    X=29

    4x+7x=12.1

    11X=12.1

    X=12.1÷11

    x=1.1

    5X一2.1x4=11.6

    5x一8.4=11.6

    5X=11.6+8.4

    x=20÷5

    x=4

    8x一3x=3.5

    5X=3.5

    X=3.5÷5

    X=0.7