Respuesta :

A=-10 all you do to find a is simply add 2 to both sides of the equal sign

Answer:

a= -10

Step-by-step explanation:

To do this you would need to isolate a, or make a stand alone on its side of the equation

a-2=-12    Original equation

a-2+2 = -12+2     Isolating the variable(adding the 2 will cancel the -2 on the left side of the equation)

a= -12+2             Simplification

a= -10                 The answer!!!

I hope this helps!!!