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Solve each of the following systems of equations by the method of cross-multiplication: x+2y +1 =0 ; 2x -3y -12 =0

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asked Feb 3, 2018 in Mathematics by sforrest072 (157,439 points) ● 61 ● 410 ● 947
edited Mar 5, 2018 by faiz
Solve each of the following systems of equations by the method of cross-multiplication:
x+2y +1 =0
2x -3y -12 =0

1 Answer

+1 vote
answered Feb 3, 2018 by mdsamim (213,225 points) ● 5 ● 10 ● 15
selected Feb 3, 2018 by sforrest072
 
Best answer

The given system of equation is

By cross-multiplication, we get

Hence, the solution of the given system of equations is x=3, y =-2 .

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