solve by the substitution method
5x+7y=53
-5x+y=19
The answer I got is -4.25
Can anyone help with this

Question

anonymous · Answer

Add the two equations together gets you 8y = 53 + 19
Then divide by 8 to isolate y by itself to get y =53+19/8 . you'll get 9
Then simply use one of the equations to solve for x

hero · Answer

Yeah, the answer is definitely not -4.25

hero · Answer

Do what outkast said

anonymous · Answer

When it asks for Substitution think of it as trying to cancel one of the variable (either x or y) and then solving for the leftover variable. Then take that number and plug it in to get the other variable. So, in your case, 5x + 7(9) = 53

= 5x +63 = 53
         -63   -63
         5x =  -10
           x = -2                i hope this helps

anonymous · Answer

would the ordered pair be (-2,9)?

anonymous · Answer

I believe so