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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
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Mathematics
4 years
2021-08-27T06:41:54+00:00
2021-08-27T06:41:54+00:00 1 Answers
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Answers ( )
1. x = – 7/3 = – 2 1/3
2. x = -2
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 !