log (6x + 5) = 2
6x + 5 > 0
6x + 5 - 5 > 0 - 5
6x > - 5
6x/6 > -5/6
x > -5/6
log (6x + 5) = 2
10^2 = 6x + 5
100 = 6x + 5
100 - 5 = 6x + 5 - 5
95 = 6x
95/6 = 6x/6
95/6 = x
Check:
6x + 2 = 6 6x = 4 x = 2/3
7x + 2 = 6x + 2 if and only x = 0.
6x+7 = -56x = -12x = -2
9x + 3 - 6x - 2 = 3x + 1
The quadratic expression x2+6x+8 when factorised equals (x+2)(x+4)
20
1/6
x=-6,5
(2, 1)
6x + 3 = 2x + 5 4x = 2 x=1/2
6x-2=x+135x=15x=3
6x + 2 = 14 The solution: 6x + 2 = 14 6x +2 - 2 = 14 - 2 6x = 12 6x / 6 = 12 / 6 x = 2