Question

b) x+9=-1 2 pontos c) 3x=21 1 ponto d) 3x+6=15 2 pontos e) 6x-10=2x+14 2 pontos f) 4x+7=x+25. ME AJUDEM É PRA AGORA EU IMPLORO

Answer 1

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$\tt b)~\sf{x+9=-1}\\\sf{x=-9-1}\\\sf{x=-10}\\\tt c)~\sf 3x=21\\\sf x=\dfrac{21}{3}\\\sf{x=7}\\\tt d) ~\sf{3x+6=15}\\\sf{3x=15-6}\\\sf 3x=9\\\sf x=\dfrac{9}{3}\\\sf x=3\\\tt e)~\sf 6x-10=2x+14\\\sf 6x-2x=14+10\\\sf4x=24\\\sf x=\dfrac{24}{4}\\\sf{x=6}\\\tt f)~\sf{4x+7=x+25}\\\sf{4x-x=25-7}\\\sf{3x=18}\\\sf{x=\dfrac{18}{3}}\\\sf{x=6}$

Answer 2

Oie, Td Bom?!

b)

x + 9 = - 1

x = - 1 - 9

x = - 10

c)

3x = 21

x = 21/3

x = 7

d)

3x + 6 = 15

3x = 15 - 6

3x = 9

x = 9/3

x = 3

e)

6x - 10 = 2x + 14

6x - 2x = 14 + 10

4x = 24

x = 24/4

x = 6

f)

4x + 7 = x + 25

4x - x = 25 - 7

3x = 18

x = 18/3

x = 6

Att. Makaveli1996