By Elemination Method ;4x+7y=11 and 3x_8y=12..
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Answer:
x=3.89, y=-0.65
Step-by-step explanation:
4x+7y=11
7y=11-4x
y=(11-4x)/7
Putting this in second equation
3x-8*(11-4x)/7=12
(21x-88+24x)=12*7
45x=84+88
45x=172
x=172/45=3.89
y=(11-4x)/7=(11-4*3.89)/7=-4.56/7=-0.65
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