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13-11-2021
Mathematics

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25. Save the simultaneous equations 2x-y=4;x+y=5

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13-11-2021

Answer:

x = 3

Step-by-step explanation:

2x - y = 4

x + y = 5

y = 5 - x

2x - (5 - x) = 4

2x + x - 5 = 4

3x = 9

x = 3

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