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Lucacitudor34
a fost răspuns

sa se rezolve ecuatiile: a)29+28+27+...+6+5=4+3+2a b)144:(n-150)=6

Răspuns :

Renatemambouko
a) 29+28+27+...+6+5=4+3+2a
29+28+27+...+6+5=7+2a 
2a=425-7
2a=418
a=209

b)144:(n-150)=6
n-150=144:6
n-150=24
n=24+150
n=174

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