Answer:
Yh 10,20,30,40,50,60,70,80,90,100.
Step-by-step explanation:
Let number be x
Number = 15
X. The letter "x" is often used in algebra to mean a value that is not yet known. It is called a "variable" or sometimes an "unknown". In x + 2 = 7, x is a variable, but we can work out its value if we try!