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a fost răspuns

2(x-1)=13
68=8(5+2x)
6(1+4x)=12
5=10(3x-2)

Răspuns :

Renatemambouko
2(x-1)=13
2x-2=13
2x=15
x=15/2

68=8(5+2x)
68=40+16x
16x=28
x=28/16
x=7/4

6(1+4x)=12
6+24x=12
24x=6
x=6/24
x=1/4

5=10(3x-2)
5=30x-20
30x=25
x=25/30
x=5/6

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