Asystem of three linear equations in three variables is inconsistent. how many solutions to the system exist?

Its given that a system of three linear equations in three variables is inconsistent.
A consistent system of equations has atleast 1 possible solution, and independent system of equations has 1 exaxt solution. Whereas, an inconsistent system has no possible solutions. Therefore, the given set of three equations will have no solution.

3x+9+4x+x=8x+9that's the answer for your question.

Yes. there is a constant ratio of number of calories to gram of protein.12/3=24/4=32/8=44/11=4