1. 3n-8n-5n+2+2n
-3(a-2)+6(a-4)-4(3a+2)
5/12(4,8p-4 4/5k)-4,5(4/9p-0,4k)
2. решить уравнение
0,4(а-4)-0,3(а-3)=1,7
-3(a-2)+6(a-4)-4(3a+2)
5/12(4,8p-4 4/5k)-4,5(4/9p-0,4k)
2. решить уравнение
0,4(а-4)-0,3(а-3)=1,7
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Answers & Comments
0.4(а - 4) - 0.3(а - 3) =1.7
0.4а - 1.6 - 0.3а + 0.9 =1.7
0.1а - 0.7 = 1.7
0.1а = 1.7+ 0.7
0.1а=2.4
а = 2.4 / 0.1
a = 24