Question

numarul N din egalitatea [(3×N+5)×3+5]×3+5=173 este egal cu​

Answer 1

[(3×N+5)×3+5]×3+5=173

[(3n+5)*3+5]*3=168

(3n+5)*3+5=56

(3n+5)*3=51

3n+5=17

3n=12

n=4

Answer 2

[(3×N+5)×3+5]×3+5=173

=[(3×N+5)×3+5]×3=173-5

=[(3×N+5)×3+5]×3=168

=[(3×N+5)×3+5]=168÷3

=[(3×N+5)×3+5]=56

=(3×N+5)×3=56-5

=(3×N+5)×3=51

=3×N+5=51÷3

=3×N+5=17

=3×N=3N

3N= 17-5

3N= 12

N = 12÷3

N= 4

Sper ca te-am ajutat!