Solve each equation below by isolating the variable.
1. 10x - 3(2x - 4)
4(x + 3)

3.-5x-(-7- 4x) = -2(3x-4)
5. 8x - 3(2x-4)= 3(x-6)
2. (x+20) = 2 + (x - 2)
4. 0.3(12x-16) = 0.4(12-3x)
6.(x+20)=(x-10) +9