Question

0,3(6-3х)=4,5-0,8(х-9)

Answer 1

1. 0.3×6=1.8
2. 0.3×3х=0.9×
3. -0.8×х=0.8х
4. -0.8×9= 7.2
1.8-0.9х=4.5-0.8х+7.2
-0.9х+0.8х=4.5+7.2-1.8
-0.1х=9.9
х=-99

Answer 2

$0.3(6 - 3x) = 4.5 - 0.8(x - 9)$
$1.8 - 0.9x = 4.5 - 0.8x + 7.2$
$- 0.9x + 0.8x = 11.7 - 1.8$
$- 0.1x = 9.9$
$x = 9.9 div ( - 0.1)$
$x = - 99$