Question

a)16-x=-8-4x b) 4x-12=2.(x+7)+6 c) 1/2.(10x-6)=x+16

Answer 1

a)16 - x = - 8 - 4x 
4x - x = - 8 - 16
3x = - 24
x = -24/3
x = - 8
=====================
b)
4x - 12 = 2.(x + 7) + 6 
4x - 12 = 2x + 14 + 6
4x - 12 = 2x + 20
4x - 2x = 20 + 12
2x = 32
x = 32/2
x = 16
============================
c) 1/2.(10x - 6) = x + 16
10x - 6  =  x + 16
    2

10x - 6 = 2(x + 16)
10x - 6 = 2x + 32
10x - 2x = 32 + 6
8x = 38
x = 38 (:2)  =  19
       8  (:2)       4

x = 19
       4