Question 56636
evaluate 
28z-15=15
28z-15+15=15+15
28z=30
{{{28z/28=30/28}}}
{{{z=30/28}}}
{{{z=(2*15)/(2*14)}}}
{{{highlight(x=15/14)}}}
Check by substituting 15/14 in for x in the original equation and see if both sides =.
{{{28(15/14)-15=15}}}
{{{(28/14)(15)-15=15}}}
{{{2(15)-15=15}}}
{{{30-15=15}}}
{{{15=15}}}  We're right!!!
Happy Calculating!!!