Hey there!☺



Let's start by simplifying both sides. First, we distribute.



Now let's subtract 7x from both sides.

Now we will subtract 12 from both sides.

In our last/final step, we will divide both sides by -10.

Now simplify -20/-10.


Hope this helps!
5³ = 125
125 =5³
㏒₅125 = 5³
If 20 sandwiched are cut into 3rd's that 20*3 which equals 60.
20 * 30 = 60
So, there are 60 sandwich pieces.
45/100 = 0.45
The decimal of 45/100 = 0.45