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Rzolvati ecuatia [3(2x-7)+11]:2-9=1


Răspuns :

[3(2x-7)+11]:2-9=1
[3(2x-7)+11]:2=1+9=10
[3(2x-7)+11]=10x2=20
3(2x-7)=20-11=9
2x-7=9:3
2x-7=3
2x=3+7
2x=10
x=10:2
x=5
[3(2x-7)+11]:2=1+9=10
3(2x-7)+11=10x2=20
3(2x-7)=20-11=9
2x-7=9:3=3
2x=3+7=10
x=10:2
x=5