3x + 12 = -6x – 9 and 12x + 20 = 2x please help will mark brainliest im super tired you dont have to show work

Question

3x + 12 = -6x – 9 and
12x + 20 = 2x

please help will mark brainliest im super tired you dont have to show work

in progress 0
Dâu 4 years 2021-08-27T06:41:54+00:00 1 Answers 14 views 0

Answers ( )

    0
    2021-08-27T06:43:07+00:00
    • Answer:

    1. x = – 7/3 = – 2  1/3

    2. x = -2

    • Step-by-step explanation:

    Hi there !

    3x + 12 = – 6x – 9

    3x + 6x = – 12 – 9

    9x = – 21

    x = – 21⁽³/9

    x = – 7/3

    x = – 2  1/3

    12x + 20 = 2x

    12x – 2x = – 20

    10x = – 20

    x = – 20/10

    x = – 2

    Good luck !

Leave an answer

Browse

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