3 years ago

3x + 12 = -6x - 9 and

Mathematics

1 answer:

Marianna [84]3 years ago

5 0

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 !

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