2 ( x + 2 ) -3 ( x - 7 )= 4

X/2 + 6 = 14

-4 ( 3 + x) = 4 ( x + 3 )

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Ответ:

jeronimo18

01.12.2022

Mathematics

So she thinks it is 86 out of the 108, giving you a fraction of 86*100/108= 4300/54 or 79.6% which is how much she is correct and hence she is 100-79.6= 21.4% wrong.

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2 ( x + 2 ) -3 ( x - 7 )= 4 X/2 + 6 = 14 -4 ( 3 + x) = 4 ( x + 3 )