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3(2x-1) = 141
8x+10=6x+18
25-5(x+1)=4
2(3x-1)=3(x+2)+4
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13 puncteee!!
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Răspuns :

6x - 3 = 141
6x = 141 + 3 = 144
x = 144:6 = 24

8x + 10 = 6x + 18
8x - 6x = 18 - 10
2x = 8
x = 4

 25-5(x+1)=4
25 - 5x - 5 = 4
5x = 20 - 4
5x = 16
x = 16/5

2(3x-1)=3(x+2)+4
6x - 2 = 3x + 6 + 4
6x - 3x = 10 + 2
3x = 12
x = 12:3 = 4