asked 38.6k views
4 votes
Solving a system of linear equations by elimination
4x+3y=6
-x-3y=3

asked
User Matthijn
by
8.1k points

1 Answer

5 votes

Answer:

x=3; y=-2

Explanation:

this is nice! your 3y in the first equation and the -3y in the second equation will cancel out if you add the two equations together

you'll get

3x = 9

x = 3

and then, you can substitute it into any of the equations

for this problem, i'll substitute it into the second equation

-3-3y=3

-3y=6

y=-2

answered
User Panshul
by
7.5k points

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