1 a-2a-{3a-(4a-5)} i need help plz and on this one to 13(5-t)-(5-t)-12(5-t)

Question

1 a-2a-{3a-(4a-5)} i need help plz and on this one to
13(5-t)-(5-t)-12(5-t)

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Sapo 3 years 2021-08-28T07:18:53+00:00 1 Answers 4 views 0

Answers ( )

    0
    2021-08-28T07:20:29+00:00

    Answer:

    1. -5

    2. 0

    Step-by-step explanation:

    1. Distribute the Negative Sign:

    =a−2a+−1(3a−(4a−5))

    =a+−2a+−1(3a)+−1(−4a)+(−1)(5)

    =a+−2a+−3a+4a+−5

    Combine Like Terms:

    =a+−2a+−3a+4a+−5

    =(a+−2a+−3a+4a)+(−5)

    Answer:

    =−5

    2. Distribute:

    =(13)(5)+(13)(−t)+−5+t+(−12)(5)+(−12)(−t)

    =65+−13t+−5+t+−60+12t

    Combine Like Terms:

    =65+−13t+−5+t+−60+12t

    =(−13t+t+12t)+(65+−5+−60)

    Answer:

    =0

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )