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8 + 7x = 9x + 4
9x - 7x = 8 - 4
2x = 4
x = 2
-5 + 9x = 10x + 4
10x - 9x = -5 - 4
x = -9
-4 + 7x = 8x + 1
8x - 7x = -4 - 1
x = -5
9 + 8x = 6x - 2
8x - 6x = -2 - 9
2x = -11
x = -\(\frac{11}{2}\)
x = -5.5
-1 - 3x = 2x + 1
2x + 3x = -1 - 1
5x = -2
x = -\(\frac{2}{5}\)
x = -0.4
-4 - 6x = 4x - 3
4x + 6x = -4 + 3
10x = -1
x = -\(\frac{1}{10}\)
x = -0.1
1 - 10x = 5x + 10
5x + 10x = 1 - 10
15x = -9
x = -\(\frac{9}{15}\)
x = -\(\frac{3}{5}\)
x = -0.6
7 + 8x = -2x - 5
8x + 2x = -7 - 5
10x = -12
x = -\(\frac{12}{10}\)
x = -1.2
2 + 3x = -7x - 5
3x + 7x = -2 - 5
10x = -7
x = -\(\frac{7}{10}\)
x = -0.7
-5 + 2x = -2x - 3
2x + 2x = -5 + 3
4x = -2
x = -\(\frac{2}{4}\)
x = -0.5
Ответ: Решения выше.
Прекрасно! Ты отлично справляешься с этими заданиями. Продолжай в том же духе!