Question

0.2X+0.5X-6.5=2.7X-5(5X-1)

Answer 1

0.2x + 0.5x - 6,5 = 2,7x - 5 (5x - 1)

0.7x - 6,5 = 2,7x - 25x + 5

23 x = 11,5

x = 11,5 : 23

x = 0,5 

Answer 2

Решение во вложении:
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