Solve the system of equations 2x-y=1; x+2y=8 graphically and find the coordinates of the points where corresponding lines intersect y-axis.
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Solve the inequality
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$- x + 3 < 0$
$- x + 3 < 0$
Solution of inequality
$x > 3$
$x > 3$
$ $ Solve a solution to $ x$
$- x \color{#FF6800}{ + } \color{#FF6800}{ 3 } < 0$
$ $ Move the constant to the right side and change the sign $ $
$- x < \color{#FF6800}{ - } \color{#FF6800}{ 3 }$
$\color{#FF6800}{ - } \color{#FF6800}{ x } < \color{#FF6800}{ - } \color{#FF6800}{ 3 }$
$ $ Change the symbol of the inequality of both sides, and reverse the symbol of the inequality to the opposite direction $ $
$x > 3$
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