Question

B) 5+x-12-2=0


C) x-5+x+1-2=1


D) 2x+1-2=1


E)x+2+2=-1

Me Ajudemm


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Answer 1

Olá...

b)

5 + x - 12 - 2 = 0

x - 14 + 5 =0

x - 9 = 0

x = 9

c)

x - 5 + x + 1 - 2 = 1

2x - 7 + 1 = 1

2x - 6 = 1

2x = 1 + 6

2x = 7

x = 7/2

d)

2x + 1 - 2 = 1

2x - 1 = 1

2x = 1 + 1

2x = 2

x = 2/2

x = 1

e)

x + 2 + 2 = - 1

x + 4 = - 1

x = - 1 - 4

x = - 5

Bons estudos.