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nalin [4]
4 years ago
14

What is 3.5z - 2.7z = -6 What is Z.

Mathematics
2 answers:
Nitella [24]4 years ago
4 0

Answer:

-7.5

Step-by-step explanation:

3.5z-2.7z is .8z

.8x=-6

.8 is 4/5

5/4 times .8z=5/4 times -6

-7.5

kow [346]4 years ago
3 0
  • Answer:

<em>z = - 7 1/2</em>

  • Step-by-step explanation:

<em>3.5z - 2.7z = - 6</em>

<em>0.8z = - 6</em>

<em>z = - 6/0.8</em>

<em>z = - 6 : 0.8</em>

<em>z = - 6 : 8/10</em>

<em>z = - 6 : 4/5</em>

<em>z = - 6 × 5/4</em>

<em>z = - 30/4</em>

<em>z = - 15/2</em>

<em>z = - 7  1/2</em>

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Answer:

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Step-by-step explanation:

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