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(10+a)x5 =50
vă rog repede ​


Răspuns :

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(10+a) x 5=50

10+a=50:5

10+a=10=>a=0

[tex]\it (10+a)\cdot5=50|_{:5} \Rightarrow 10+a=10 \Rightarrow a=0[/tex]