Решите первые 5 примеров

Question

Решите первые 5 примеров

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Answer 1

1) 4 - 8,2x - 4,8 = 5
-8,2x = 5,8
x = -58/82
x = -29/41

2) 12 = -6 +18x - 9
18x = 27
x = 27/18
x = 3/2

3) 5x - 7,5 = 0
5x = 7,5
x = 50/75
x = 2/3

4) 2x - 0.5 = 1
2x  = 1.5
x = 15/20
x = 3/4

5) 2x - 36 +12x = 1 + 3x + 6
11x = 43
x = 43/11