Question 1066412

Please help me solve this equation 
x-x/2+2+1/2(x/2-2)-2=20
<pre>{{{x - x/2 + 2 + (1/2)(x/2 - 2) - 2 = 20}}}
{{{x - x/2 + (1/2)(x/2 - 2) = 20}}} -------- Simplifying left side
{{{x - x/2 + x/4 - 1 = 20}}} ------- Distributing
{{{x - x/2 + x/4 = 21}}} ------ Adding 1 to both sides
4x - 2x + x = 84 -------- Multiplying by LCD, 4
3x = 84
{{{highlight_green(matrix(1,5, x, "=", 84/3, or, 28))}}}