We are given the following expression
Let us identify the terms, variables, coefficients, and constants in the above expression.
A term can be a single number (like 9) or a single variable (like x) or a constant multiplied with a variable (like 5x) or several constants and variables multiplied (like 5x2yz)
So, in the above expression, we have 3 terms
5x, 7z, and 9
A constant is a number whose value is fixed and does not change (like 1, 2, 5, 30 etc.)
So, in the above expression, we have only 1 constant that is 9
A Variable is a value that is not fixed and can change (like x, y, z etc)
So, in the above expression, we have 2 variables
x and z
A coefficient is a number that is being multiplied by a variable (like 5x here 5 is coefficient)
So, in the above expression, we have 2 coefficients
5 and 7
Therefore, the summary is
Terms = 5x, 7z, 9
Constant = 9
Variables = x, z
Coefficients = 5, 7