Respuesta :

b=-2+3a
-3a=-b-2
-3a=-2b
a=2b/3a

Answer:

Solve for a: [tex]a = \frac{b+2}{3} [/tex]

Steps:

b = -2 + 3[tex]a[/tex]

Swap sides so that all variable terms are on the left-hand side.

-2 + 3[tex]a[/tex] = b

Add 2 to both sides.

3[tex]a[/tex] = b + 2

Divide both sides by 3.

[tex]\frac{3a}{3} = \frac{b +2}{3} [/tex]

Dividing by 3 undoes the multiplication by 3.

[tex]a = \frac{b+2}{3} [/tex]

Solve for b:

b = 3[tex]a[/tex] - 2

Hope this helps and have a Great day! =D