\(2r - 3,1 = 1,7\)
Keep the numbers with incognito on the left and the numbers without incognito on the right. Exchanging the signs when changing sides if applicable.
\(2r = 1,7 + 3,1\)
\(2r = 4,8\)
\(r = \frac{4,8}{2}\)
\(\boxed{r = 2,4}\)
--------------------------------
\(4t + 3,5 = 12,5\)
Keep the numbers with incognito on the left and the numbers without incognito on the right. Exchanging the signs when changing sides if applicable.
\(4t = 12,5-3,5\)
\(4t = 9,0\)
\(t = \frac{9,0}{4}\)
\(\boxed{t = 2,25}\)
-------------------------------------
\(8m - 5.5 = 10.1\)
Keep the numbers with incognito on the left and the numbers without incognito on the right. Exchanging the signs when changing sides if applicable.
\(8m = 10,1 + 5,5\)
\(8m = 15,6\)
\(m = \frac{15,6}{8}\)
\(\boxed{m = 1,95}\)
