Respuesta :

arinaitwedaniella201

Answer:

2x+y+x=3+y=1

2x+x+y+y+3=1

2x+2y+3=1

2x+2y+3-3=1-3

2x+2y=-2

Sarah06109

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.