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CORONITA!!!!!!
Rezolvati ecuatiile:
a) 2x+5=17
b)3x-1=14
c)2(5x-3)=94
d)3(2x+7)-5+22
e) 5[2(3x-2)-11]+4=29

Răspuns :

a) 2x+5=17
2*x=17-5 
x=12:2
x=6
b)3x-1=14
3x=14+1
x=15:3
x=5
c)2(5x-3)=94
10x-6=94
10x=94+6
x=100:10
x=10
d) 3(2x+7)-5+22 ceva lipseste....
e)5[2(3x-2)-11]+4=29
5(6x-4-11)=29-4
30x-20-55=25
30x-75=25
30x=25+71
x=100:30




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