Bob wants to sub 3x + y = 13 into 4x +3y = 6 he needs to do what to get this

x = 6.6, y = -6.8

Step-by-step explanation:

Subtract  3 x  from both sides of the equation.

y = 13 - 3x

4x + 3y = 6

Replace all occurrences of  y  with  13  −  3 x  in each equation.

-5x + 39 = 6

y = 13 - 3x

Solve for  x  in the first equation.

x = or 6.6

Replace all occurrences of  x  with 6.6  in each equation.

y = or - 6.8

hope this helps, good luck :)

okay wait before i answer, is this for your points on a graph?