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a fost răspuns

6x+9=4x+13. 6(x-2)=24. 3(x+2)+2x=71. 4(x+3)+2(2x-2)=5x+14.

Răspuns :

1) 6x-4x=13-9
2x=4
x=4/2
x=2
2)6x-12=24
6x=24+12
6x=36
x=36/6
x=6
3)  3x+6+2x=71
5x=71-6
5x=65
x=65/5
x=13
4) 4x+12+4x-4=5x+14
8x-5x=14-12+4
3x=2+4
3x=6
x=2
6x+9=4x+13
X=2
6(x-2)=24
X=6
3(x+2)+2x=71
X=13
4(x+3)+2(2x-2)=5x+14
X=2

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