Answer:
21
Step-by-step explanation:
Substitute.
We are given x = 3, y = 9 and z = 2
3(9-2) = 3(7) = 21
Answer:
21
Step-by-step explanation:
Substitute the given values into the equation.
x(y-z)
x is equal to 3, y is equal to 9 and z is equal to 2. Substitute 3 in for x, 9 for y and 2 for z.
3(9-2)
Solve according to PEMDAS: Parentheses, Exponents, Multiplication, Division, Addition and Subtraction
Subtract inside of the parentheses first.
3(7)
Multiply 3 and 7
21
