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29 August, 18:14

Solve for x: 20 = 3x - 1

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Answers (2)
  1. 29 August, 19:06
    0
    Let's solve your equation step-by step.

    20=3x-1

    Step 1:flip the equation.

    3x-1=20

    Step 2:Add 1 to both sides.

    3x-1+1=20+1

    3x=21

    Step 3:divide both sides by 3.

    3x/3=21/3

    X=7
  2. 29 August, 19:31
    0
    20=3x-1

    move - 1 to the other side

    sign changes from - 1 to + 1

    20+1=3x-1+1

    20+1=3x

    21=3x

    divide both sides by 3 to get x by itself

    21/3=3/3x

    Cross out 3 and 3, divide by 3 and then becomes 1*1*x=x

    21/3=x

    Answer:

    x=7
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