2,3 * 5а=(2,3*5)а=11,5а
8х * (–2а)=-16ах
–8а * (–12)=96а
–0,25у * 6b=1.5ув
2. 3а + 7а= (3+7)a=10а
–17b – 3b=-20b
10a – 3a + 17b –5=7a + 17b-5
0.3x + 1.6y – 0.3x – 0.4y=1.2у
1.2c + 1 – 0.6y - 0.8 – 0.2c=с+0.2-0.6y
2,3 * 5а=(2,3*5)а=11,5а
8х * (–2а)=-16ах
–8а * (–12)=96а
–0,25у * 6b=1.5ув
2. 3а + 7а= (3+7)a=10а
–17b – 3b=-20b
10a – 3a + 17b –5=7a + 17b-5
0.3x + 1.6y – 0.3x – 0.4y=1.2у
1.2c + 1 – 0.6y - 0.8 – 0.2c=с+0.2-0.6y