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18 October, 18:15

50+30z=250+10z

Use any strategy to solve

Use models or visuals

Write a story

How do you know your answer is correct

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  1. 18 October, 20:14
    0
    50+30z=250+10z

    z=10

    Step-by-step explanation:

    50+30z=250+10z

    Substract 50 on both sides

    50+30z-50=250+10z-50

    Simplify

    30z=10z+200

    Substract 10z on both sides

    30z-10z=10z+200-10z

    20z=200

    200/20 = 10

    Answer z=10
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