Mathematics
valeire
2016-04-09 02:20:36
Transform both equations in each system of equations so that each coefficient is an integer. ***I also need it to be solved using substitution method.
ANSWERS
jasmen45
2016-04-09 03:07:41

For the first one multiply each term by the LCM of 4 and 6, which is 12:- 15x -36 = 2y..................(1) and second multiply by 5:- 2x + y = 9..............(2) solving:- from equation (2) y = 9-2x,  substitute  in equation (1):- 15x - 36 = 2(9-2x) = 18 - 4x 19x = 54 x = 54/19 = 2.84 so y =  9 - 2(2.84) = 3.32

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