Question 245811
A) 0.3x-0.2y=4
B) 0.2x+0.5y=-75/17
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A) 3x-2y=40 multiply by 10
B) 2x+5y=-750/17
B) 34x+85y=-750 Multiply by 17
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B) 68x+170y=-1500
A) 255x-170y=3400
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=>323x=1900
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x=100/17
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B)
 .2(100/17)+.5y=-75/17
20/17+.5y=-75/17
.5y=-95/17
y=-190/17
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Ed