0,3(6-3х)=4,5-0,8(х-9)
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
Решите задачу: