4x+5y=6 2x-y=9 solve graphically
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4x+5y=6_____(1)
2x-y=9_____(2)×5
4x+5y=6
10x-5y=45
________
14x=51
x=51/14
from equation 2
2×51/14-y=9
51/7-9=y
y=-12/9
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