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rezolvati ecuatiile a) x-1/2+x+2/4+1/3=x+5/8+1 7/12 b) x+1/2+2x+6/3=3x+21/5

REPEDE VA ROG


Răspuns :

a) x-1/2+x+2/4+1/3=x+5/8+17/12 
2x+1/3=
x+5/8+17/12 
2x-x=5/8+17/12-1/3
x=(5x3+17x2-24)/24
x=(15+34-24)24
x=25/24

b) x+1/2+2x+6/3=3x+21/5 
 x+1/2+2x+6/3=3x+21/5 
3x+1/2+2=3x+21/5
3x-3x=21/5-1/2-2
Aici cred ca este ceva gresit, mai verifica odata exercitiul