After finding the value of each variable, we find that the result of the operation is 21.
- Considering that the men is represented by variable x, we have that:
[tex]3x + 15[/tex]
[tex]x = \frac{15}{3}[/tex]
[tex]x = 5[/tex]
- Considering that the mask is represented by variable y, we have that:
[tex]3y = 9[/tex]
[tex]y = \frac{9}{3}[/tex]
[tex]y = 3[/tex]
- Considering that the weight is represented by variable z, we have that:
[tex]3z = 18[/tex]
[tex]z = \frac{18}{3}[/tex]
[tex]z = 6[/tex]
The operation is:
[tex]z + xy[/tex]
The solution is, considering the multiplication takes precedence over the addition:
[tex]z + xy = 6 + 5(3) = 6 + 15 = 21[/tex]
21 is the result.
A similar problem is given at https://brainly.com/question/25042603
