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Cum se rezolva acest gen de ecuații???
4x+5=17 116-4x=80


Răspuns :

4x+5=17=>4x=17-5=>4x=12=>x=12:4=>x=3 .... 116-4x=80=>4x=116-80=>4x=36=>x=36:4=>x=9.
4x+5=17
4x=17-5
4x=12
x=12:4
x=3
V:4*3+5=12+5=17

116-4x=80
4x=116-80
4x=36
x=36:4
x=9
V:116-4*9=116-36=80

sper ca te am ajutat