\[\boxed{\ \mathbf{949\ (949)}.\ Еуроки\ - \ ДЗ\ без\ мороки}\]
\[1)\ x = 0,08:\]
\[3,4x + 5,6x = 9x \cdot 0,08 = 0,72.\]
\[2)\ a = 0,26:\]
\[5,4a - 3,9a = 1,5a =\]
\[= 1,5 \cdot 0,26 = 0,39\]
\[3)\ m = 3,94:\]
\[1,8m - 0,5m + 0,7m = 2m =\]
\[= 2 \cdot 3,94 = 7,88.\]
\[4)\ z = 8,2:\]
\[0,19z - 0,12z + 0,33z - 1,92 =\]
\[= 0,4z - 1,92 =\]
\[= 0,4 \cdot 8,2 - 1,92 =\]
\[= 3,28 - 1,92 = 1,36.\]