document.write( "Question 61534: How do I sole these?\r
\n" ); document.write( "\n" ); document.write( "x + 2y = 8
\n" ); document.write( "5x - 6y = 8 \n" ); document.write( "

Algebra.Com's Answer #42400 by rchill(405) $\"\"$ $\"About$

You can put this solution on YOUR website!
There are several ways to solve linear equations: by substitution, addition, graphing/plotting. Let's graph them; first solve each equation for y. The first equation becomes $\"y=-expr%281%2F2%29x%2B4\"$ and the second becomes $\"y=expr%285%2F6%29x-expr%284%2F3%29\"$ . Looking at the following graph, you see they intersect at (4,2), which is the solution. To check that solution, substitute that ordered pair for x and y in both original equations; you should get two true statements.
\n" ); document.write( " $\"graph%28200%2C200%2C-2%2C8%2C-2%2C5%2C-x%2F2%2B4%2C%285x-8%29%2F6%29\"$ \n" ); document.write( "

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