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Use elimination to solve the system: 6x-4y=6 -6x+3y=0
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3 votes
Use elimination to solve the system:
6x-4y=6
-6x+3y=0

User Paul Ivanov
by
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2 Answers

1 vote
6x+4y=6
-6x+3y=0

7y=6
y=6/7

use one of the equations above i picked the first one
6x+4y=6
6x+4(6/7)=6
6x+24/7=42/7
6x=18/7
x=3/7
User Fooman
by
8.1k points
4 votes
6x and -6x cancel each other out.
You are left with -1y=6
Therefore, y=-6

6x-4(-6)=6
6x+24=6
Subtract 24 from both sides.

6x=-18
Divide both sides by 6
X=-3

Final answers: x=-3 y=-6
User Myroslav
by
7.5k points
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