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Ostrovityanka [42]

3 years ago

7

-5x + x + 9 = -4x + 12

1 answer:

Kamila [148]3 years ago

5 0

-5x + x + 9 = -4x + 12

-4x+9= -4x+12

move +9 to the other side

sign changes from +9 to -9

-4x+9-9= -4x+12-9

-4x= -4x+3

move -4x to the left side

sign changes from -4x to +4x

-4x+4x= -4x+4x+3

0= 0+3

0= 3

Answer: no solution

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