FirstLieutenantTrain
24.02.2021 •
Mathematics
I need help............
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Ответ:
x= -1
Step-by-step explanation:
3(4x+2)-4x-2= -4
12x+6-4x-2= -4
12x-4x+6-2= -4
8x+4= -4
8x= -4-4
8x= -8
x= -8÷8
x=-1