Question

4 (x-6)+3 (2x-4)=0 ; (4x-3)(9x+1)=(1-2x)(5-18x) ; 8=3(x-5)-5 (7x+1) ; 5x (6-4x)-3x (1+9x)=2-47x (x+2)

Answer 1

4(x - 6) + 3(2x - 4) = 0
4x - 24 + 6x - 12 = 0
10x = 12 + 24
x = 36/10 = 18/5
(4x - 3)(9x + 1) = (1 - 2x)(5 - 18x)
36x² + 4x - 27x - 3 = 5 - 18x - 10x + 36x²
36x² - 36x² - 23x + 28x = 8
5x = 8
x = 8/5
8 = 3(x - 5) - 5(7x + 1)
8 = 3x - 15 - 35x - 5
8 + 20 = - 32x
x = - 28/32 = - 7/8
5x(6 - 4x) - 3x(1 + 9x) = 2 - 47x² - 94x 
30x - 20x² - 3x - 27x² + 47x² + 94x = 2
- 47x² + 47x² + 121x = 2
x = 2/121

Answer 2

4x-24+6x-12=0
10x=36
x=36/10=18/5
2) 36x²+4x-27x-3=5-18x-10x+36x²
  -23x-3=5-28x
5x=8
x=8/5
3) 8=3x-15-35x-5
28=-32x
x=-28/32=-7/8
4)30x-20x²-3x-27x²=2-47x²-94x
131x=2
x=2/121