document.write( "Question 6187: Can u solve these problems by steps?\r
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document.write( "1 3/2x+4=-9
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document.write( " 3/2x=-9-4
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document.write( "2 2(3x-7)+4x=26\r
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document.write( "3 4-3x=5-6x-7\r
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document.write( "8 solve the equations : y=2x+5 and 3x-2y=10\r
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document.write( "9 solve the equations : 6x-3y=11 and 6x+3y=17\r
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document.write( "10 solve the equations 3x+5y=22 and 4x+3y=11 \n" );
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Algebra.Com's Answer #3330 by hamda(7)![]() ![]() ![]() You can put this solution on YOUR website! 1 3/2x+4=-9 \n" ); document.write( " 3/2x=-9-4 \n" ); document.write( " 3/2x=-13 \n" ); document.write( " 3=-13(2x) \n" ); document.write( " 3=-26x \n" ); document.write( " x=-3/26 \n" ); document.write( " \n" ); document.write( "2 2(3x-7)+4x=26 \n" ); document.write( " 6x-14+4x=26 \n" ); document.write( " 10x=26+14 \n" ); document.write( " 10x=40 \n" ); document.write( " x=40/10 \n" ); document.write( " x=4\r \n" ); document.write( "\n" ); document.write( "3 4-3x=5-6x-7 \n" ); document.write( " 4-3x=-2-6x \n" ); document.write( " 4+2=3x-6x \n" ); document.write( " 6=-3x \n" ); document.write( " x=6/-3 \n" ); document.write( " x=-2 \r \n" ); document.write( "\n" ); document.write( "8 solve the equations : y=2x+5 and 3x-2y=10 \n" ); document.write( " y=2x+5 ---- eq.1 \n" ); document.write( " 3x-2y=10 -----eq.2\r \n" ); document.write( "\n" ); document.write( " Substituting 'y' from equation 1 in equation 2: \n" ); document.write( " 3x-2(2x+5)=10 \n" ); document.write( " 3x-4x-10=10 \n" ); document.write( " -x-10=10 \n" ); document.write( " x=-10-10 \n" ); document.write( " x=-20 \n" ); document.write( " \n" ); document.write( " Substituting 'x' in equation 1: \n" ); document.write( " y=2(-20)+5 \n" ); document.write( " y=-40+5 \n" ); document.write( " y=-35\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "9 solve the equations : 6x-3y=11 and 6x+3y=17 \n" ); document.write( " 6x-3y=11 ---- eq.1 \n" ); document.write( " 6x+3y=17 ---- eq.2\r \n" ); document.write( "\n" ); document.write( " Solving by elimination method: \n" ); document.write( " 12x=28 \n" ); document.write( " x=28/12 \n" ); document.write( " x=7/3 \n" ); document.write( " \n" ); document.write( " Substituing 'x' in equation 1: \n" ); document.write( " 6(7/3)-3y=11 \n" ); document.write( " 14-3y=11 \n" ); document.write( " y=1\r \n" ); document.write( "\n" ); document.write( "10 solve the equations 3x+5y=22 and 4x+3y=11 \n" ); document.write( " 3x+5y=22 ---- eq.1 \n" ); document.write( " 4x+3y=11 ---- eq.2 \n" ); document.write( " \n" ); document.write( " From eq. 1: \n" ); document.write( " x=(22-5y)/3 ----eq.3 \n" ); document.write( " \n" ); document.write( " Substituing 'x' in equation 2: \n" ); document.write( " 4((22-5y)/3)+3y=11 \n" ); document.write( " (88-20y)/3 +3y=11 \n" ); document.write( " 88-20y+9y=33 \n" ); document.write( " -11y=-55 \n" ); document.write( " y=5\r \n" ); document.write( "\n" ); document.write( " Substituing 'y' in equation 3: \n" ); document.write( " x=(22-5(5))/3 \n" ); document.write( " x=(22-25)/3 \n" ); document.write( " x=-3/3 \n" ); document.write( " x=-1 \n" ); document.write( " \r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |