Question 114199


{{{-5 - 2(3x - 4) = 21 }}}....move {{{-5}}} to the right


{{{ - 2(3x - 4) = 21 + 5 }}}

{{{ - 2(3x - 4) = 26 }}}.....divide both sides by {{{-2}}}

{{{ - 2(3x - 4)/-2 = 26/-2 }}}.....

{{{ 3x - 4 = -13 }}}.....move {{{-4}}} to the right

{{{ 3x  = -13+ 4 }}}..... 

{{{ 3x  = -9 }}}..... divide both sides by {{{3}}}

{{{3x/3 = -9/3}}}

{{{x = -3}}}