Сложите почленно неравенства:
а) 4а+ b>2b+1 и a-b>3-2b
б) 7,5а - 11 < 9,6b + 19 и 15 - 7,5а <8-5,3b
c) 15,7+8b>3a -6 и 4,3-8b>7,9+2а
а) 5a>4
б) 4<3.3b+27
c) 20>5a+1.9
4а+a+b-b>2b-2b+1+3 5a>4
7,5a-7,5a-11+15<9,6b-5,3b+19+8 4<4,3b+27
15,7+4,3+8b-8b>3a+2a-6+7,9 20>5a+1,9
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Answers & Comments
а) 5a>4
б) 4<3.3b+27
c) 20>5a+1.9
4а+a+b-b>2b-2b+1+3 5a>4
7,5a-7,5a-11+15<9,6b-5,3b+19+8 4<4,3b+27
15,7+4,3+8b-8b>3a+2a-6+7,9 20>5a+1,9