x/3 = 4/ x + 1

Answer 1

Is the right side (4/x) + 1 or 4/(x+1) ?

If the latter,
x(x+1) = 12
x^2 +x -12 =0
(x+4)(x-3) = 0
x = 3 or -4

Answer 2

x+y=6
x+3y=6
What is the solution? Select the correct choice below and fill in any answer boxes in your choice.

A__(Type an ordered pair.)
B__There are infinitely many solutions.
C__There is no solution.