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3 years ago

Solve the system using elimination

1 answer:

6 0

Eliminate x's
multiply 2nd equation by -2 ad add to first

2x+3y=9
-2x-10y=-16 +
0x-7y=-7

-7y=-7
divide by -7
y=1

sub back

2x+3y=9
2x+3(1)=9
2x+3=9
minus 3
2x=6
divide 2
x=3

x=3
y=1

(x,y)
(3,1)

D

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