a) 1/4 x = 8x = 8 4x = 32
б) 5x - 12.5 = 05x = 12.5x = 12.5 / 5x = 2.5
в) 3x - 0.6 = x + 4.43x - x = 4.4 + 0.62x = 5x = 5 / 2x = 2.5
г) 4x - (7x - 2) = 174x - 7x + 2 = 17-3x + 2 = 17-3x = 15x = 15 / -3x = -5
Ответ:a) x = 32б) x = 2.5в) x = 2.5г) x = -5
a) 1/4 x = 8
x = 8 4
x = 32
б) 5x - 12.5 = 0
5x = 12.5
x = 12.5 / 5
x = 2.5
в) 3x - 0.6 = x + 4.4
3x - x = 4.4 + 0.6
2x = 5
x = 5 / 2
x = 2.5
г) 4x - (7x - 2) = 17
4x - 7x + 2 = 17
-3x + 2 = 17
-3x = 15
x = 15 / -3
x = -5
Ответ:
a) x = 32
б) x = 2.5
в) x = 2.5
г) x = -5