The answer is 9(3+x)
My work is in the attached image
Answer:
21p - 10r +123
Step-by-step explanation:
The sum of 5+2=7
The sum of 2+5=7
The sum is the same because basically, the position and location of the numbers do not matter in <em>addition </em>and multiplication. However, the position matters in subtraction and division.
Hope that helps!