Question

6 целых4/5-х=1,2. х-8 целых7/9=5/18

Answer 1

6 целых4/5-х=1,2.
-х= 1,2 -6 ц. 4/5
-х= - 5 ц. 3/5
х= 5 ц. 3/5

х-8 целых7/9=5/18
х= 5/18 + 8 ц. 7/9
х= 9 ц. 1/18

Answer 2

$6 frac{4}{5}-x=1.2$
$x=6 frac{4}{5} -1.2$
$x= frac{34}{5}- frac{6}{5}$
$x= frac{28}{5}$
$x=5.6$

$x-8 frac{7}{9}= frac{5}{18}$
$x= frac{5}{18}+8 frac{7}{9}$
$x= frac{5}{18}+ frac{79}{9}$
$x= frac{163}{18}$
$x=9 frac{1}{18}$