Question

no entiendo pls ayuda unu

Answer 1

Respuesta:

4n=20

n=20:4

n=5

n/12=7

12n/12=7. 12

n=84

n/3=6

3n/3=6. 3

n=18

5n=20+5

5n=15

n=15/5

n=3

n/8+2=5

10n/8+2=5x10

n=50

3n=24:8

3n=3

n=3/3

n=1