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Solve the system by elimination
x + 2y = -14
x - y = 13

Sagot :

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Answer:

1 {x+2y= -14

2{x-y=13

x+2y= -14

2x-2y= 26

3x= -14+26

3x/3= 12/3

x= 4

while x-y=13

4-y=13

-y= 13-4

-y=9

-y/-1=9/-1

y= -9

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