Answer: Option B
[tex]x = 800\ gr[/tex]
Step-by-step explanation:
We know that the mass of the empty container is 600 gr
And when they put 8 cans of equal mass then the final weight of the container is 7 kilograms or 7000 grams
If we call x the weight of the cans then this situation can be represented by the following linear equation.
[tex]8x + 600 = 7000[/tex]
Now we solve the equation for the variable x.
[tex]8x = 7000 -600\\\\8x = 6400\\\\x = \frac{6400}{8}\\\\[/tex]
[tex]x = 800\ gr[/tex]
