solve by graphical method 2x+y=7 and 3x+2y=12
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2x+y=7 eq 1
3x+2y=12 eq 2
(2x+y=7)3
3x+2y=12)2
6x+3y=21
6x+4y=24
_ _ _
ox -1y=-3
1y=3
y=3/1
y=3
substitutie y=3 in eq 1
2x+y=7
2x+3=7
2x=7-3
2x=4
x=4/2
x=2
even in the graphical method
y=3 and x=2
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