Simultaneous equation in variable DX=65 dy =91 d=13 then y?

1.	Simultaneous equation in variable DX=65 dy =91 d=13 then y?
Answer» ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ Q1)simultaneous EQUATION in VARIABLE Dx=65 and Dy=91, d=13 then y=?? $\: \bullet \underline{ \boxed{ \bf{answer}}}$ $\: \implies \displaystyle \tt{by \: crammers \: rule}$ $\implies\displaystyle\tt{x=\dfrac{D_x}{D} \: and \: y=\dfrac{D_y}{D}}$ $\implies\displaystyle\tt{x=\dfrac{65}{13}=\cancel\dfrac{65}{13}=5}$ $\implies\displaystyle\tt{y=\dfrac{91}{13}=\cancel\dfrac{91}{13}=7}$ $\: \\ \implies \boxed{\displaystyle \tt{the \: value \: of \: x \: and \: y \: is \: 5 \: and \: 7}}$

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