Respuesta :

Answer:

x=16/7

Step-by-step explanation:

4x-(9-3x)=8-1

4x-9+3x=7

7x-9=7

7x=7+9

7x=16

x=16/7

Answer:

    x =(-36-√960)/-24=3/2+1/3√ 15 = 2.791 or x =(-36+√960)/-24=3/2-1/3√ 15 = 0.209