Substitution method

# Substitution method - y 8 3 y = 48 Now solve for y Simplify...

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Substitution method Sometimes a system is more easily solved by the  substitution method.  This method involves  substituting one equation into another.  Example 6 Solve for  x  and  y.   From the first equation, substitute (  y  + 8) for  x  in the second equation.

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Unformatted text preview: ( y + 8) + 3 y = 48 Now solve for y. Simplify by combining y 's. Now insert y 's value, 10, in one of the original equations. Answer: y = 10, x = 18 Check the solution....
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## This note was uploaded on 11/09/2011 for the course MATH 1310 taught by Professor Staff during the Fall '07 term at Texas State.

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Substitution method - y 8 3 y = 48 Now solve for y Simplify...

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