Question

Solve the system of equations by graphing. y=-5x+4y=3x+4

Answer 1

The solution is:

(x,y)= (0,4)

-----------------

-----------------------------

`\begin{gathered} \text{Let:} \\ x+y=7\text{ (1)} \\ y=6x\text{ (2)} \\ \text{ Replacce (2) into (1)} \\ x+6x=7 \\ 7x=7 \\ x=(7)/(7) \\ x=1 \\ \text{ Replace x into (2)} \\ y=6(1) \\ y=6 \end{gathered}`