7) 0,2(-4x + 2) – 0,3 ( 5x – 10) =
8) -0,5*(-5,6x + 26y) + 2,4* (5 – 3y) =
9) 5(2c +1) – 6(3 – 5c) + 4(-2c + 7) =
8) -0,5*(-5,6x + 26y) + 2,4* (5 – 3y) =
9) 5(2c +1) – 6(3 – 5c) + 4(-2c + 7) =
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Answers & Comments
Ответ: 7) -2.3x+3.4
8)2.8x-20,2y+12
9)32c+15
Пошаговое объяснение:
7)0,2(-4x+2)-0,3(5x-10)
-0.8x+0.4-1.5x+3
-2.3x+3.4
8) -0,5*(-5,6x + 26y) + 2,4* (5 – 3y)
2.8x-13y+12-7.2y
2.8x-20,2y+12
9)5(2c +1) – 6(3 – 5c) + 4(-2c + 7)
10c+5-18+30c-8c+28
32c+15