jerry8878
jerry8878
16-12-2020
Mathematics
contestada
Solve. 21 + 3x = 3(-x + 3) - 12
x=
Respuesta :
harpermattox
harpermattox
16-12-2020
x = -4.
explanation:
21+3x=3(-x+3)-12
21+3x=-3x+9-12
21+6x=9-12
21+6x=-3
6x=-24
x=-4
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