Question 1000024


{{{W=4x-9y}}} solve for {{{y}}}

{{{W+9y=4x-9y+9y}}}

{{{W+9y=4x-cross(9y)+cross(9y)}}}

{{{W+9y=4x}}}

{{{W-W+9y=4x-W}}}

{{{cross(W)-cross(W)+9y=4x-W}}}

{{{9y=4x-W}}}

{{{y=(4x-W)/9}}}