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user100 [1]
2 years ago
13

Find the solution for the system of linear equations by elimination: 2x+y=9,3x-y=16

Mathematics
2 answers:
Mademuasel [1]2 years ago
5 0
The answer to the question is (-5,-1)
alexandr402 [8]2 years ago
3 0

Answer:

(-5,-1)

Step-by-step explanation:

2x+y=9 -> y=-2x+9

3x-y=16

3x-(-2x+9)=16

3x+2x-9=16

5x-9=16

5x-9 (+9)=16 (+9)

5x=25

x=5

no plug in 5 to x in any equation above

2(5)+y=9

10+y (-10)=9 (-10)

y=-1

so the answer is (-5,-1)

hope it's correct! and hope i helped

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