document.write( "Question 77757: I am having lots of trouble answering this equation.\r
\n" ); document.write( "\n" ); document.write( "Solve by substitution method:\r
\n" ); document.write( "\n" ); document.write( "4x + 3y = 10
\n" ); document.write( "y = 2x\r
\n" ); document.write( "\n" ); document.write( "Can you please help me?
\n" ); document.write( "Thank you!
\n" ); document.write( "

Algebra.Com's Answer #55739 by Earlsdon(6294)\"\" \"About 
You can put this solution on YOUR website!
Solve by substitution:
\n" ); document.write( "4x+3y = 10
\n" ); document.write( "y = 2x Substitute this for the y in the 1st equation and solve for x.
\n" ); document.write( "4x+3(2x) = 10 Simplify.
\n" ); document.write( "4x+6x = 10 Combine like-terms.
\n" ); document.write( "10x = 10 Divide by 10.
\n" ); document.write( "x = 1 Now substitute this for the x in the 2nd equation.
\n" ); document.write( "y = 2(1)
\n" ); document.write( "y = 2
\n" ); document.write( "Solution is: (1, 2)
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