solve the equation -2 (x + 5) = 4 3 ( x+ 4 ) = 45

Question

solve the equation

-2 (x + 5) = 4

3 ( x+ 4 ) = 45

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Thu Nguyệt 3 years 2021-08-27T16:43:42+00:00 2 Answers 1 views 0

Answers ( )

  1. Xavia
    0
    2021-08-27T16:44:48+00:00
    Reply

    x= -7

    3x+12=45

    3x= 33

    x=11

  2. thanhcong
    0
    2021-08-27T16:45:15+00:00
    Reply

    Answer:

    -2(x+5)=4

    -2x-10=4

    -4-10=2x

    -14=2x

    -14÷2=2x÷2

    -7=x

    3(x+4)=45

    3x+12=45

    3x=45-12

    3x=33

    3x÷3=33÷3

    x=11

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