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Alexandraaaa2729
a fost răspuns

7x+8+2•(5-x)=6+2•(x+3)

Răspuns :

Răspuns:

7x+8+10-2x=6+2x+6

7x-2x-2x=-8-10+6+6

3x=-6

X=-2

Nsus728

7x+8+2•(5-x)=6+2•(x+3)

7x+8+10-2x=6+2x+6

7x+18-2x=12+2x

5x+18=12+2x

18-12=2x-5x

6=-3x

x=-2

Sper ca te-am ajutat!