+0  
 
0
52
4
avatar+55 

y=5x

y=4x+9

 Feb 3, 2021
 #1
avatar+116049 
+2

Just set  the y's equal

 

5x  = 4x + 9

 

5x - 4x  = 9

 

x =  9

 

 

cool cool cool

 Feb 3, 2021
 #2
avatar+55 
0

Whats Y?

dadevb124  Feb 3, 2021
 #3
avatar+116049 
0

Plug   x  into one of the equations

 

y = 5(9)  = 45

 

cool cool cool

CPhill  Feb 3, 2021
 #4
avatar+267 
+1

FOR X: write 5x in terms of y, add -4x to both sides to get x=9

 

FOR Y: substitute 9 -> y=5x to get y=45

 Feb 4, 2021

36 Online Users

avatar