Respuesta :

31671269

Answer:

equation 1 : 4.5x + 27

equation 2: -9x\2 + 27

equation 3: 4.5x + 16

equation 4: 4.5x - 16

Step-by-step explanation:
1) 3(1.5x+9) = 4.5x +27 =-9
4.5x+27=-9
4.5x=-36
x=-8

2) -9(1/2x-3) = -4.5x +27 =45
-4.5x+27=45
-4.5x=18
x=-4

3) 2(2.25x+8) = 4.5x+16=11.5
4.5x+16=11.5
4.5x=-4.5
x=-1

4) 8.5x - 2(2x+8) = 8.5x -4x -16 = 4.5x-16=11
4.5x-16=11
4.5x=27
x=6

Hope it helped!