Question 1129082
{{{ x*(-3) + 8 = 20 }}}
Subtract {{{ 8 }}} from both sides
{{{ -3x = 12 }}}
Divide both sides by {{{ -3 }}}
{{{ x = -4 }}}
-------------------
check answer:
{{{ (-4)*(-3) + 8 = 20 }}}
{{{ 12 + 8 = 20 }}}
{{{ 20 = 20 }}}
OK