Respuesta :

kiaritabunny11175

Answer:

1) 8x- 4+3y

2) 12x- 28

3) 6 (3x+2)

4) 7x+2

Step-by-step explanation:

1) 5x +3 +4y-7+6x-y-3x

  8x+3+4y-7-y

2) 4x3x-4x7

   12x-4 x 7

3) 18x+12

   6(3x+2)

   

4) 9x+ 1-7x +4+5x- 3

   7x+1+4-3

Im sorry I wanted to answer it as quick as possible sorry if you dont understand.