Which of the following equations have no solutions?
Choose all answers that apply:
A)
40x + 40 = 40x + 20
B)
–20x + 40 = –20x+ 20
C)
–40x + 40 = 20x + 20
D)
20x + 40 = 40x + 20

Me find the measure to side a and the process to solve the problem you appreciate it : )

Aiden buys two bags of chips at $1.09 each and a 20 ounce soda for $1.20 at the gas station. he knows that the state tax is 5.5. how much change will he receive from a $5 bill?

What properties allow transformation to be used as a problem solving tool