I need the answer for ticked question Share with your friends Share 0 Roopam Pandey answered this Dear student,4x+5y=7 ...................... 13x+4y=5 .......................2let 1x=uthen4u+5y=7 ................... 33u+4y=5 ...............4Multiply eqn 3 by 3 and eqn 4 by 4 and subtract eqn4 from eqn3 12u+15y=21-12u+16y=20 - - - 0-y=1y=-1from eqn 34u-5=74u=12u=124=3u=3⇒1x=3x=13, y=-1Regards 0 View Full Answer
