Question 1003497
x and y, prices for children and adults.



Here is the literal translation from worded description into a system of equations:
{{{system(3x+2y=30,2x+y=15)}}}


The steps are very simple. Use the Elimination Method, at least for finding x.

Multiply the second equation by 2:
{{{system(3x+2y=30,4x+2y=30)}}}
This is to use Elimination Method for finding x.
{{{4x+2-(3x+2)=30-30}}}
{{{highlight(x=0)}}}-------Children can attend the zoo for free.


Taking second equation of the system,
{{{y=15-2x}}}
{{{y=15-2*0}}}
{{{highlight(y=15)}}}