Question

1.-3x-(x+1) =x-2+3(-x+3)
2.-3[2x-(3x+1)]=x+1
3.-x-3(x+5) =3x+10

Answer 1

Explicación paso a paso:

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

3x-x-1 = x-2-3x+9

2x-1 = -2x-2+9

2x+2x = -2+9+1

4x = 8

x= 8/4

x= 2

2.- 3[2x-(3x+1)]=x+1

3[2x-3x-1]=x+1

6x-9x-3=x+1

6x-9x-x= 1+3

6x-10x= 4

-4x=4

x= 4/-4

x= -1

3.- x-3(x+5) = 3x+10

x-3x-15 = 3x+10

x-3x-3x = 10+15

x-6x = 25

-5x = 25

x= 25/-5

x= -5