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a fost răspuns

Rezolvati ecuatia:3x+4x=24,5x+x-2x=36,
2x+3=x+8,3x-2=x+12,7x+3x+9=5x+34,
9x-4x+11=3x-x+44.

Răspuns :

3X+4X=24
7X=24
X=24/7

5X+X-2X=36
4X=36
X=36/4=9

2X+3=X+8
2X-X=8-3
X=5

3X-2=X+12
3X-X=12+2
2X=14
X=14/2=7

7X+3X+9=5X+34
7X+3X-5X=34-9
5X=25
X=25/5=5

9X-4X+11=3X-X+44
9X-4X-3X+X=44-11
3X=33
X=33/3=11

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