Question

Determinați numarul natural x care verifica egalitațiile​

Answer 1

Răspuns:

x+49=115

x=115-49

x=66

327-3*x=15+48

327-3x=63

327-63=3x

264=3x

x=264:3

x=88

15+(x+2)+21=47

15+x+2=47-21

17+x=26

x=26-17

x=9

2*x+37=79-14

2x+37=65

2x=65-37

2x=28

x=28:2

x=14

32+(2*x-5)=63+14

32+2x-5=77

27+2x=77

2x=77-27

2x=50

x=50:2

x=25

Sper ca te-am ajutat!

Answer 2

Explicație pas cu pas:

ღSalutare!ღ

a)x+89=115

x=115-89

x=26

b)2×x+23=91

2x=91-23

2x=68

x=68:2

x=34

c)327-3×x=15+48

327-3x=63

3x=327-63

3x=264

x=264:3

x=88

d)15+(x+2)+21=47

15+x+2+21=47

15+2+21+x=47

17+21+x=47

38+x=47

x=47-38

x=9

e)2×x+37=79-14

2x+37=65

2x=65-37

2x=28

x=28:2

x=14

f)32+(2×x-5)=63+14

32+2x-5=77

27+2x=77

2x=77-27

2x=50

x=50:2

x=25

Succes!!;)