Answer:
[tex]\boxed {\tt 7}[/tex]
Step-by-step explanation:
We are given the expression
[tex]2x+y[/tex]
and asked to evaluate when x=3 and y=1. Therefore, we must substitute 3 in for x and 1 in for y.
[tex]2(3)+1[/tex]
Solve according to PEMDAS: Parentheses, Exponents, Multiplication, Division, Addition, and Subtraction.
Multiply 2 and 3.
[tex]6+1[/tex]
Add 1 and 6.
[tex]7[/tex]
The expression 2x+y evaluated at x=3 and y=1 is equal to 7.
