Question

Resolva com Q: a)-3x=12
B)4x-3=x-12
C)3-4(x-1)+1=2(3-2x)

Answer 1

A)

-3x= 12

  x= 12/-3

   x= -4

Resposta → S= {-4}

B)

4x-3= x-12

4x-x= -12+3

3x= -9

 x= -9/3

 x= -3

Resposta → S= {-3}

C)

3-4(x-1)+1 = 2(3-2x)

3-4x+4+1 = 6-4x

-4x+8 = 6-4x

-4x+4x = 6-8

0x = -2

0 = 2

Resposta → S= ∅