Respuesta:
7.-
30n= 270
n= 270/30
n= 9
8.-
4x-26= 10
4x= 36
x= 9
9.-
22u-7= 103
22u= 110
u= 5
30n=270
n=270/30
n=9
4x-26=10
4x=10+26
4x=36
x=36/4
x=9
22u-7=103
22u=103+7
22u=110
u=110/22
u=5
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Respuesta:
7.-
30n= 270
n= 270/30
n= 9
8.-
4x-26= 10
4x= 36
x= 9
9.-
22u-7= 103
22u= 110
u= 5
Respuesta:
30n=270
n=270/30
n=9
4x-26=10
4x=10+26
4x=36
x=36/4
x=9
22u-7=103
22u=103+7
22u=110
u=110/22
u=5