<PRE><B>Question 542421</B>
Substitute one value of y into the other equation.  Then solve for x in that equation.&lt;P&gt;
Substitute y=x^2 into y=2x.  It becomes...&lt;P&gt;
{{{x^2 = 2x}}}&lt;P&gt;
{{{x^2 - 2x = 0}}}&lt;P&gt;
x(x-2) = 0&lt;P&gt;

x=0&lt;P&gt;
x-2=0
x=2&lt;P&gt;
Find the values of y that come from those x values.&lt;P&gt;
y=2(0)=0&lt;P&gt;
y=2(2)=4
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