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How do you solve this? -x+y=7 6x+y=14

How do you solve this? -x+y=7 6x+y=14
asked 91.3k views
3 votes
How do you solve this?
-x+y=7
6x+y=14

asked
User Maximilian Ballard
by
8.2k points

1 Answer

3 votes
Multiply the first equation by -1 to use elimination method.

x-y=-7
6x+y=14

7x=7
x=1

Plug this x value in.

-1+y=7
y=8

Final answer: (1,8)
answered
User Scott Gearhart
by
8.5k points
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