What is the answer to the below questions 1.Find the sum of 72−104+5and -32+ 4-10. 2.What should be added to 32+32+3 to get 3+3? 3.Subtract

Question

What is the answer to the below questions 1.Find the sum of 72−104+5and -32+ 4-10. 2.What should be added to 32+32+3 to get 3+3? 3.Subtract the sum of 12ab –10bc –18ac and 9ab +12bc + 14ac from the sum of ab + 2bc and 3bc –ac

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Kim Chi 4 years 2021-08-23T11:53:31+00:00 1 Answers 15 views 0

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  1. linhdan
    0
    2021-08-23T11:55:20+00:00
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    Answer:

    -65

    -61

    20ab – 3bc – 3ac

    Step-by-step explanation:

    1.) Find the sum of 72−104+5and -32+ 4-10.

    72 – 104 + 5 = – 27

    – 32 + 4 – 10 = – 38

    Sum of (-27 and – 38) = – 27 + (-38) = – 65

    2.) What should be added to 32+32+3 to get 3+3

    32 + 32 + 3 = 67

    3 + 3 = 6

    67 + x = 6

    x = 6 – 67

    x = – 61

    3.) Subtract the sum of 12ab –10bc –18ac and 9ab +12bc + 14ac from the sum of ab + 2bc and 3bc –ac

    (12ab –10bc –18ac) + (9ab +12bc + 14ac)

    12ab + 9ab – 10bc + 12bc – 18ac + 14ac

    = 21ab + 2bc – 4ac

    (ab + 2bc) + (3bc – ac)

    ab + 2bc + 3bc – ac

    ab + 5bc – ac

    (21ab + 2bc – 4ac) – (ab + 5bc – ac)

    21ab + 2bc – 4ac – ab – 5bc + ac

    21ab – ab + 2bc – 5bc – 4ac + ac

    20ab – 3bc – 3ac

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