Verified Answer :

seljk
  1. 5x+1=4x-1
    5x-4x=-1-1
    x=-2

    2. -10b+5=7b+5
    7b+10b=5-5
    17b=0
    b=0

    3. r+15=4r-6
    4r-r=15+6
    3r=21
    r=21/3
    r=7

    4. 10-2v=-5v-50
    -2v+5v=-50-10
    3v=-60
    v=-60/3
    v=-20

    5. 15y+3=18y
    18y-15y=3
    3y=3
    y=3/3
    y=1

    6. -2x+6=4x+9
    4x+2x=6-9
    6x=-3
    x=-3/6
    x=-1/2

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