8th grade

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I am having trouble with these kinds of problems and I ask my teacher but he doesnt explain it good enough. Will you please tell me step by step instructions to solve this type of problem...

-2(z + 11)=6

thank you

  • 8th grade -

    multiply the parenthesis by -2

    -2z-22=6
    add 22 to each side.
    -2z=28
    divide both sides by -2
    z=-14

  • 8th grade -

    -2(z + 11)=6

    First, multiply:

    -2z - 22 = 6

    Then, to combine like terms, add 22 to both sides of the equation.

    -2z - 22 + 22 = 6 + 22

    -2z = 28

    z = -14

    You can prove this answer by substituting -14 for z in your original problem.

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