Question 1123703
Use substitution method!  Do computations for the variables, AFTER starting final formula of each.  (or actually, you can do some computations any time you feel like).


{{{92y=3910-21.0x}}}

{{{y=(3910-21.9x)/92}}}

-

{{{substituting}}}
{{{57.5x+114((3910-21.9x)/92)=6270}}}

{{{92*57.5x+114(3910-21.9x)=92*6270}}}

{{{92*57.5x+114*3910-114*21.9x=92*6270}}}

{{{(92*57.5-114*21.9)x+114*3910=92*6270}}}

{{{(92*57.5-114*21.9)x=92*6270-114*3910}}}

{{{2793.4x=131100}}}

{{{x=131100/2793.4}}}

{{{highlight(x=46.9320541276)}}}


.

.{{{continue}}}{{{finding}}}{{{y}}}.
Use this one for evaluating y:
{{{y=(3910-21.9x)/92}}}



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You probably want to round your found x and y, AFTER you compute them, to three significant figures - AFTER you first calculate them in the solving process.