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a fost răspuns

1). x+3=2x-6
2). 2x-7=x+8
3). 4x-25=3(x+2)
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Răspuns :

Nechiforanisoara6ask

Răspuns:

1)x+3=2x-6

x-2x+3= - 6

x-2x= - 6-3

-x= - 6-3

-x= - 9

x=9

2)2x-7=x+8

2x-x-7=8

2x-x=8+7

x=8+7

x=15

3)4x-25=3(x+2)

4x-25=3x+6

4x-3x-25=6

4x-3x=6+25

x=6+25

x=31

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