1.

\left. \begin{array} { l } { 5 x + 3 y = 9 - - - - ( I ) } \\ { 2 x + 3 y = 12 - - - ( \Pi ) } \end{array} \right.

Answer»

Subtracting equation 2 from 1x=-1 and put the value of x in y..then y=14/3

5x+3y=9- 2x+3y=12(-) (-) (-)____________3x=-3x=-3/3x=-1

5x+3y=95×(-1)+3y=93y=9+5y=14/9

subtract equator your answer will come



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