I just took a test and the only problem I had issues with was this:
Solve for x. ax+b=5(x+a)
Maybe its kinda early for my brain, but could someone please walk me through the steps of how I should've solved this?
Thanks.
$\displaystyle ax+b=5(x+a)$ first let's expand the right side
$\displaystyle ax+b=5x+5a$ this is the distributive law, review it if you don't remember it as it is extremely important
Now the name of the game is to isolate the x on one side of the equation
So lets subtract 5a from both sides
$\displaystyle ax+b-5a=5x+5a-5a$
$\displaystyle ax+b-5a=5x$ and let's subtract $\displaystyle ax$ from both sides
$\displaystyle ax-ax+b-5a=5x-ax$
$\displaystyle b-5a=5x-ax$ and we can factor the right side
$\displaystyle b-5a=x(5-a)$ and divide through to solve for x