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(25x):5=10,(2x+3x):5=7;(45x+27x):36=4



Răspuns :

25X/5=10, deci 25X=50 si X=2

5x/5 = 7, adica x=7

72x/36=4, adica
2x=4, de unde x=2

Mult succes in continuare!