Question

escribir en lenguaje coloquial y resolver

A) (X-1)÷3=1

B) (X-1)×2-5=-1​

Answer 1

Respuesta:

Explicación paso a paso:

A)(x-1)/3=1

   (x-1)=1*3

   x=3+1

   x=4

B)(x-1)*2-5=-1

  (x-1)*2=-1+5

  (x-1)=4/2

  x=2+1

  x=3

Answer 2

Respuesta:

$(x - 1) \div 3 = 1 \\ x - 1 = 1 \times 3 \\ x - 1 = 3 \\ x = 3 + 1 \\ x = 4$

$(x - 1) \times 2 - 5 = - 1 \\ 2x - 2 = - 1 + 5 \\ 2x = 4 + 2 \\ 2x = 6 \\ x = 6 \div 2 \\ x = 3 \\ comprobacion \\ (3 - 1) \times 2 - 5 = - 1 \\ (6 - 2) - 5 = - 1 \\ 4 - 5 = - 1 \\ - 1 = - 1$