Respuesta :

Answer:

7d - 4 + 3 - 2d = 5d - 1

Explanation:

To simplify the expression on the left-hand side, we add the numbers to numbers and the variables to variables.

The rearranging the addition on the left-hand side gives

[tex](7d-2d)+(-4+3)[/tex][tex]=5d-1[/tex]

Hence, we see that

[tex]7d-4+3-2d=5d-1[/tex]

therefore, the term to be put on the blue line is 5d.