Respuesta :

51088

Answer:

a=1.333

Step-by-step explanation:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation: 4+6*a-(9*a)=0

Solve  :    -3a+4 = 0

Subtract  4  from both sides of the equation : -3a = -4

Multiply both sides of the equation by (-1) :  3a = 4

Divide both sides of the equation by 3: a = 4/3 = 1.333

Hope this helps!