26-04-2021
Mathematics

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Please answer 9 and 11

Please answer 9 and 11 class=

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26-04-2021

Answer:

9. 3x+11+25=90 90-36=54 54/3=x x=18

11. 45+3x=180, 180-45=135, 3x=135, 135/3=45 x=45

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