document.write( "Question 409166: 6x+3(3x)=45 \n" ); document.write( "

Algebra.Com's Answer #288099 by Jeef Gorrdon(26) $\"\"$ $\"About$

You can put this solution on YOUR website!
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Solved by pluggable solver: SOLVE linear system by SUBSTITUTION

Solve:
\n" ); document.write( " $\"+system%28+%0D%0A++++1%5Cfart+%2B+1%5Cy+=+2%2C%0D%0A++++1%5Cfart+%2B+-1%5Cy+=+0+%29%0D%0A++\"$ We'll use substitution. After moving 1*y to the right, we get:
\n" ); document.write( " $\"1%2Afart+=+2+-+1%2Ay\"$ , or $\"fart+=+2%2F1+-+1%2Ay%2F1\"$ . Substitute that
\n" ); document.write( " into another equation:
\n" ); document.write( " $\"1%2A%282%2F1+-+1%2Ay%2F1%29+%2B+-1%5Cy+=+0\"$ and simplify: So, we know that y=1. Since $\"fart+=+2%2F1+-+1%2Ay%2F1\"$ , fart=1.
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\n" ); document.write( " Answer: $\"system%28+fart=1%2C+y=1+%29\"$ .
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