Question

1/2x+y=1/1/3x-7y=4elimination method

Answer 1

$\frac{1}{2} x+y=1$
$\frac{1}{3}x-7y=4$
If we clear the fractions, we will have
$x+2y=2$
$x-21y=12$
Using elimination
$23y=-10$
Therefore,
$y= \frac{-10}{23}$
But
x+2y=2
$x- \frac{20}{23}=2$
$23x-20=46$
$23x=66$
$x= \frac{66}{23}$

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