You can put this solution on YOUR website! To find the value of a, we need to get a by itself on the left side of the equal sign. To do this, first add 5 to both sides of the equal sign:
7a - 5 + 5 = 23 + 5
Combine like terms:
7a = 28
Finally, divide both sides of the equation by 7. This will give us the value of a: