Mathematics
16.11.2021 23:04
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Transform both equations in each system of equations so that each coefficient is
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.
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***i also need it to be solved using substitution method.
kaybec2386
5,0(56 marks)
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
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
falldownguyss
4,9(42 marks)
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