What is the value of y so that the ordered pair (5, y) is a solution to the equation -5x + y = -40?

Question

isaidavila · Answer

(x;y)--->(5;y)
X=5
Replace in the equation

isaidavila · Answer

And find y

bridgeni · Answer

A. 7   B. -15  C. 9  D. -65

bridgeni · Answer

Isaid i did that i kept getiing y = 4 idk what im doing wrong

isaidavila · Answer

Ok
-5(5)+y=-40
-25+y=-40
Sum 25 in both sides....
Y=-40+25

bridgeni · Answer

omg i love you
THANK YOU SO Much

isaidavila · Answer

No problem

anonymous · Answer

Ok here is a way you find out :)
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You can do this with any operation really :P

okay 
 well 
 if you plug the numbers in, you get.. 

 k2+3=4 

 then you subtract 3 from 4 and have 

 k2=1 

 then you divide both sides by 2 
 and get 

 either k=1/2 
 or 
 k=0.5 

 hope that helped. (: