14 multiplied by 77 is 1,078.
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7*x - 5 + 14 = 77*x + 9 = 77*x = -2x = -2/7x equals minus two sevenths
-9 * 7 - 14 = -63 - 14 = -77
1 x 154 2 x 77 7 x 22 11 x 14
-9x + 2y = 5 (1)7x + 7y = -4 (2)Mutiply first equation by 7 and second equation by 2-63 x + 14 y = 35 (3)14 x + 14 y = -8 (4)eq 4 minus eq 3 gives:77 x = - 43 accordingly x = - 43/77Substitute x in eq (1):-9 (-43/77) + 2y = 52y = 5 - (9)(43)/77 = (385-387)/77 = -2/77y = -1/77Answer: x = -43/77 and y = -1/77
The L.C.M of 77 and 14 is 154