Question

2. Rezolvaţi în mulţimea numerelor naturale ecuațiile: a) (x – 4):5 +50 = 200; b) 125.(x+3) + 25 = 1025; c) (2x+11):3- 4 = 3;​

Answer 1

a) (x-4):5=150

x-4=750

x=754

b)125•(x+3)=1000

x+3=8

x=5

c)(2x+11):3=7

2x+11=21

2x=10

x=5

Answer 2

Răspuns:

SALUT

a) (x-4):5+50 = 200

x-4/5 +50 = 200

x-4+250 = 1000

x+246 = 1000

x = 1000 - 246

x = 754.

b) 125*(x+3)+25 = 1025

125x+375+25 = 1025

125x+400 = 1025

125x = 1025-400

125x = 625

x = 625:125

x = 5.

c) (2x+11):3-4 = 3

2x+11/3 -4 =3

2x+11-12 = 9

2x-1 = 9

2x = 9+1

2x = 10

x = 10:2

x = 5.

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