a) 3x - 10x - 9x + 4 = 0
3x – 10x – 9x = 0 – 4
-16x = -4
x = 0.25
б) x + x - x + x - 2 = 0
x + x – x + x = 0 + 2
2x = 2
x = 1
a) 3x - 10x - 9x + 4 = 0
3x – 10x – 9x = 0 – 4
-16x = -4
x = 0.25
б) x + x - x + x - 2 = 0
x + x – x + x = 0 + 2
2x = 2
x = 1