Solve for a.

18 - 2a = 8

a = 5

Step-by-step explanation:

18 - 2a = 8

Subtract 18 from each side

18 - 18 - 2a = 8-18

-2a = - 10

Divide each side by - 2

-2a/-2 = - 10/-2

a = 5

a=5

Step-by-step explanation:

To solve for a, we need to get a by itself.

To do this, we need to do the opposite of what is being done to the equation, and what we do on one side, has to be done on the other.

18-2a=8

Subtract 18 from both sides

18-18 - 2a = 8-18

-2a = - 10

Divide both sides by - 2

-2a/-2=-10/-2

a=5