What is the value of 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!

if you look at the 12 and X you can see 12 is on each side

in order to find the answer, you would have to multiply or divide each side

Step-by-step explanation:

(i dont know the answer but i hope that helped)

b

step-by-step explanation:

ez

the domain of a function is the set of input values, x , for which a function is defined. the domain is shown in the left oval in the picture below. the function provides an output value, f(x) , for each member of the domain.