Super simple! Set up the equations to equal each other.
2.50x + 8 = 4.50x
No subtract 2.50x from both sides
8 = 2x
Now, divide by 2 to isolate the x.
x= 4
NOw let's go back and check again.
I'm gonna do this in a calculator.....They are indeed equal to each other!
Hope I helped!