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2(x+1)-3=-12
x+30=4-2(x+6)
x+5=-5-5(x+2)
dau coroana+12 puncte


Răspuns :

Rezolvarea o ai completa in poza.
Vezi imaginea DIUVA
2(x+1)-3 = -12
2x+2-3 = -12
2x-1 = -12
2x = -11
x = -11/2

x+30 = 4-2(x+6)
x+30 = 4-2x-12
x+2x = -8-30
3x = -38
x = -38/3.

x+5 = -5-5(x+2)
x+5 = -5-5x-10
x+5x = -15-5
6x = -20
x = -10/3.

* Sign Of The Times *