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30-10-2020
Mathematics

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How do you solve substitution to the equation y=-2x +1 4x+y=9

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xalilovmuxammad3 xalilovmuxammad3

30-10-2020

Answer:

Step-by-step explanation: 2x+y=1

4x+y=9

we substract equals. 2x=8 so x=4 , y=-7

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