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Svet_ta [14]
3 years ago
9

8 = 4 - 2x - 2x +5 = 17 12= - 3 ( x+ 5)

Mathematics
1 answer:
max2010maxim [7]3 years ago
5 0
8 = 4 - 2x\\8 + 2x = 4\\2x = -4\\x = -2

- 2x +5 = 17\\-2x =12\\x = -6

12= - 3 ( x+ 5)\\12 = -3x -15\\-3x =27\\x= -9
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