Solve the following pair of linear equations by the substitution method.(i) \( x+y=14 \)(ii) \( ...

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Solve the following pair of linear equations by the substitution method.(i) \( x+y=14 \)(ii) \( s-t=3 \)\( x-y=4 \)\( \frac{s}{3}+\frac{t}{2}=6 \)(iii) \( 3 x-y=3 \)(iv) \( 0.2 x+0.3 y=1.3 \)\( 9 x-3 y=9 \)\( 0.4 x+0.5 y=2.3 \)(v) \( \sqrt{2} x+\sqrt{3} y=0 \)(vi) \( \frac{3 x}{2}-\frac{5 y}{3}=-2 \)\( \quad \sqrt{3} x-\sqrt{8} y=0 \quad \frac{x}{3}+\frac{y}{2}=\frac{13}{6} \)
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