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21 November, 13:32

2.4z + 1.2z - 6.5 = 0.7

Solve for z

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Answers (1)
  1. 21 November, 15:12
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    2.4z + 1.2z = (2.4 + 1.2) z = 3.6z;

    We have 3.6z - 6.5 = 0.7 / + 6.5;

    3.6z = 7.2 / * 10;

    36z = 72 / : 36;

    z = 2.
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