Question

use the method of substitution to solve the system of linear equations.
3a=2-b
3a=4-b
choices:
there is one solution. the solution is___.
there are infinitely many solutions.
there are no solutions.
I really need someone's help I only have about 3 minutes more for the computer.

Answer 1

There is no solution.
If 3a=2-b
and 3a=4-b then you could say
2-b=4-b
If b=2
0=2 which is invalid, so no solution.

Answer 2

thank you very much, i really appreciate it