Navi18
03.08.2019 •
Mathematics
5x - 7 = 18 means that 5x = 3x + 2 = 11 means that 3x =
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Ответ:
5x=18+7
5x=25
the first one is 25
3x+2=11
3x=11-2
3x=9
the second one is 9
Ответ: