prosze o pozwązanie tego zadania (x-7)-2(3x+5)=3
x - 7 - 6x - 10 = 3- 5x - 17 = 3- 5x = 20 x = - 4
x-7-6x-10=3x-6x=3+7+10-5x=20 /:(-5)x=(-4)
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x - 7 - 6x - 10 = 3
- 5x - 17 = 3
- 5x = 20
x = - 4
x-7-6x-10=3
x-6x=3+7+10
-5x=20 /:(-5)
x=(-4)