document.write( "Question 130163: QUESTION 1\r
\n" ); document.write( "\n" ); document.write( "Solve the following simultaneous equations using inverse method:
\n" ); document.write( "2x – 3y + z = -2
\n" ); document.write( "x - 6y +3z = -2
\n" ); document.write( "3x+ 3y - 2z = 2\r
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\n" ); document.write( "\n" ); document.write( "QUESTION 2\r
\n" ); document.write( "\n" ); document.write( "The intersection point between two straight lines is (3,0), where the slope is given as below:
\n" ); document.write( "M1 = -2 dan M2 = 1
\n" ); document.write( "Find the equation for each of the two straight lines.\r
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Algebra.Com's Answer #95099 by madhan_math(34)\"\" \"About 
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QUESTION 2\r
\n" ); document.write( "\n" ); document.write( "The intersection point between two straight lines is (3,0), where the slope is given as below:
\n" ); document.write( "M1 = -2 dan M2 = 1
\n" ); document.write( "Find the equation for each of the two straight lines?\r
\n" ); document.write( "\n" ); document.write( "Solution:\r
\n" ); document.write( "\n" ); document.write( " We know that the general equation of straight line is y=mx+c , where 'm' is the slope and c is the constant.
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\n" ); document.write( " Here given two slopes of the straight lines.
\n" ); document.write( " i.e., m1=-2 and m2=1
\n" ); document.write( " Therefore,
\n" ); document.write( " y = -2x+c1 -----(1)
\n" ); document.write( " and y = x+c2 ------(2)\r
\n" ); document.write( "\n" ); document.write( " Now we have to find constant terms. That is the reason they gave intersection point.
\n" ); document.write( " We use the intersection point (3,0) to find the two constants.
\n" ); document.write( " First we substitute the point in equation (1)
\n" ); document.write( " 0=-2(3)+c1 implies -6+c1=0
\n" ); document.write( " Therefore c1=6-------(3)\r
\n" ); document.write( "\n" ); document.write( " and now equation (2)
\n" ); document.write( " 0=1+c2 implies c2=-1------(4)
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\n" ); document.write( " Hence the two straight line equations are
\n" ); document.write( " y=-2x+6
\n" ); document.write( " and y=x-1 . \r
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