Question 169113
{{{6x + 18 = 12x + 12}}} Get all the x on one side by subtracting 6x from each side. 
{{{6x + 18 - 6x = 12x + 12 - 6x}}} Simplify
{{{18 = 6x + 12}}} Remove the 12 by subtracting 12 from each side
{{{18 - 12 = 6x + 12 - 12}}} Simplify
{{{6 = 6x}}} Find the value of x by dividing each side by 6.
{{{6/6 = 6x/6}}} Simplify
{{{1 = x}}}
Substitute x=1 into the original equation to check
{{{6 x 1 + 18 = 12 x 1 + 12}}}
{{{6 + 18 = 12 + 12}}}
{{{24 = 24}}} It works