👤
Oanceamadalina2
a fost răspuns

rezolva (9*a+23):10-4=130-129*1

Răspuns :

CarMina03
(9*a+23):10-4=130-129*1
(9*a+23):10-4=130-129
(9*a+23):10-4=1
(9*a+23):10=1+4
(9*a+23):10=5
9*a+23=5*10
9*a+23=50
9*a=50-23
9*a=27
a=27:9

A=3
IuliaIR
(1) (9a+23)÷10-4=130-129×1 (2) (9a+23)÷10=1+4 (3) 9a+23=5×10 (4) 9a=27 (5) a=27÷9=3

Alte intrebari