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Solve the following pair of equations by using
W elimination method.
(i) \( 8 x+5 y=11, x+y=4 \)
(ii) \( x-y=3,3 x-2 y=10 \)
(iii) \( 4 x-3 y=8,6 x-y=\frac{29}{3} \)
(iv) \( 11 x+15 y+23=0,7 x-2 y-20=0 \)
(v) \( 3 x-5 y=4,9 x-2 y-7=0 \)
(vi) \( x-2 y=3,3 x-3 y=5 \)
(vii) \( 0.4 x+0.3 y=1.7,0.7 x-0.2 y=0.8 \)
(viii) \( \frac{x}{4}+\frac{y}{3}=-\frac{1}{12}, \frac{x}{2}-\frac{5}{4} y=\frac{7}{4} \)
(ix) \( \frac{x}{3}+\frac{y}{3}=14, \frac{5 x}{6}-\frac{y}{3}+7=0 \)
(x) \( \frac{x}{10}+\frac{y}{5}+1=15, \frac{x}{8}+\frac{y}{6}=15 \)
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