a) 7 + 4(x-2) - 3(x-1) = 07 + 4x - 8 - 3x + 3 = 0x + 2 = 0x = -2
б) 2x - 7*(3x-1) = 262x - 21x + 7 = 26-19x + 7 = 26-19x = 19x = -1
в) -1*(4x-2) = 2-4x + 2 = 2-4x = 0x = 0
a) 7 + 4(x-2) - 3(x-1) = 0
7 + 4x - 8 - 3x + 3 = 0
x + 2 = 0
x = -2
б) 2x - 7*(3x-1) = 26
2x - 21x + 7 = 26
-19x + 7 = 26
-19x = 19
x = -1
в) -1*(4x-2) = 2
-4x + 2 = 2
-4x = 0
x = 0