3a-5-a2=1-20 20(3a-5-a2)=20(1-20) 20(3a-5)-20(9-2=20(1-20)4(3a)-10(a)=1(1)12a-10a=1=2a=1a=2/12:5x=mx=m/53:9x=2+nx=2+n/9x=2n/9grado:8A
3a-5-a2=1-20
ResponderEliminar20(3a-5-a2)=20(1-20)
20(3a-5)-20(9-2=20(1-20)
4(3a)-10(a)=1(1)
12a-10a=1
=2a=1
a=2/1
2:5x=m
x=m/5
3:9x=2+n
x=2+n/9
x=2n/9
grado:8A
3a-5-a2=1-20
ResponderEliminar20(3a-5-a2)=20(1-20)
20(3a-5)-20(9-2=20(1-20)
4(3a)-10(a)=1(1)
12a-10a=1
=2a=1
a=2/1
2:5x=m
x=m/5
3:9x=2+n
x=2+n/9
x=2n/9
grado:8A