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Use elimination to solve each system of equations. Explain your steps in complete sentences. Use the textbox to type your paragraph(s).


x + y = 9

x - y = -3

SOMEONE PLS HELP ASAP!! I WILL GIVE YOU BRAINLIEST! PLS USE COMPLETE SENTENCES AND YOUR OWN WORDS!

Respuesta :

x + y = 9

x - y = -3

so because +y-y= 0 , you can cut it.
x+x=2x 9+(-3)=6
2x=6
x= 3 so you substitute x’s value in any one eq to get y
x+y=9
3+y=9
y=9-3
y=6

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