Question 252406
Note: Since {{{3x=y}}}, this means that {{{y=3x}}}



{{{2x + y = 10}}} Start with the first equation.



{{{2x + 3x = 10}}} Plug in {{{y=3x}}}



{{{5x=10}}} Combine like terms on the left side.



{{{x=(10)/(5)}}} Divide both sides by {{{5}}} to isolate {{{x}}}.



{{{x=2}}} Reduce.



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Answer:


So the solution is {{{x=2}}}



Note: if you need to find 'y' as well, simply plug {{{x=2}}} into {{{y=3x}}} to find its value.