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.
If the sum of two consecutive numbers is $45$ and one number is $X$ .This statement in the form of equation $1s:$ $\left(1$ Point) $\right)$ $○5x+1$ $1eft\left(x+1$ $r1gnt\right)=45s$ $○sx+1ef\left(x+2$ $r1gnt\right)=145s$ $sx+1x=45s$
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$3$ $\right)$ ) If the sum of two consecutive odd numbers is $20$ find the numbers. b) If the sum of two consecutive even numbers is $3\left(\right)$ find the numbers. $x$
$7$ The sum of $1$ two consecutive natural numbers is $79$ Find the two numbers. $1$ $Hint$ If $x$ $1$ $1$ $0$ one of the numbers, then the consecutive number $1sx+1$
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