X+2y =3 -x+y=6 elimination

asked May 3, 2018 147k views

2 votes

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4 votes

x=3-2y

plug that into the second equation

-(3-2y)+y=6
-3+2y=6
2y=6+3
2y=9
y=9/2

Lptr answered May 3, 2018

by Lptr

5.6k points

2 votes

You can try using the formula y=mx+b

Sunteen Wu answered May 9, 2018

6.1k points

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