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15.11.2019 •
Mathematics
Susan adds 12 - 1/4 / number to get 22 what is her number
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Ответ:
Start by translating and writing an equation:
Let x be the number
so:
12-1/4 x = 22
now subtract 12 from both sides. (because 12-12=0)
12-12-1/4 x =22-12 (now simplify)
-1/4 x = 10
next you want 1 x, not -1/4 x so to get to 1 you multiply both sides by the reciprocal of -1/4 which is -4/1
-1/4 * -4/1 x = 10 * -4/1 (multiply and simplify)
x = -40
Ответ:
The answer to this question is y = 4x - 5.
Hope this helps!!! :)