document.write( "Question 252937: Can you help me find the solution to each system by the addition (elimination) method. 4s - 5t = 18 and 6s + 10t = -8 \n" ); document.write( "

Algebra.Com's Answer #185093 by drk(1908) $\"\"$ $\"About$

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TO solve using elimination, we need all variables on the same side and lined up.
\n" ); document.write( "(i) 4s - 5t = 18
\n" ); document.write( "(ii) 6s + 10t = -8
\n" ); document.write( "multiply (i) by 2. We get
\n" ); document.write( "(iii) 8s - 10t = 36
\n" ); document.write( "(ii) 6s + 10t = -8
\n" ); document.write( "add down and solve for s.
\n" ); document.write( "(iv) 14s = 28
\n" ); document.write( "s = 2.
\n" ); document.write( "Find t.
\n" ); document.write( "t = -2
\n" ); document.write( "(2, -2) \n" ); document.write( "

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