Question 571804
{{{ -3z + 18 > 2z - 2 }}}
Add {{{ 3z }}} to both sides
{{{ 18 > 5z - 2 }}}
Add {{{2}}} to both sides
{{{ 20 > 5z }}}
Divide both sides by {{{ 5 }}}
{{{ 4 > z }}}
Rewrite it going from right to left
{{{ z < 4 }}}
--------
Put {{{ z = 3.99 }}} into original equation
{{{ -3*3.99 + 18 > 2*3.99 - 2 }}}
{{{ -11.97 + 18 > 7.98 - 2 }}}
{{{ 6.03 > 5.98 }}}
OK