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Tothghita1
a fost răspuns

Rezolvati in multimea numerelor naturale ecuatiile:
A) 2x+23=3×7+5;
B) 3x+5+5x+6=35
C) 11x+5-7x-9=2×10+1
D) 7x+5-5x-7=2la puterea 0+2la puterea1+2la puterea2+1

Răspuns :

Karinapop24
A) 2x+23=36
2x=3 -> x=3:2
B)8x+11=35
8x=24 x=3
C)4x-4=21
4x=25 x=25:4
D) 2x-2=1+2+4+1
2x=8-> x=4
Dragutamaria89
a) 2x+23=3*7+5
     2x+23=21+5
     2x+23=26
     2x=26-23
      2x=3
      x=

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