If the point $(2,3)$ lies on the graph of the equation $3 x+a y=18,$ find the value of $a$.
$a=4$
How many solution(s) of the equation $2 x+1=x-3$ are there on the :
$(i)$ Number line
$(ii)$ Cartesian plane
Draw the graph of each of the following linear equations in two variables
$2 x-3 y=0$
If the point $(a, a-2)$ lies on the graph of the equation $3 x+5 y=30,$ find the value of $a$.
Draw the graph of the equation represented by a straight line which is parallel to the $x$-axis and at a distance $3$ units below it.
Write four solutions for each of the following equations
$2 x+3 y=7$
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