2x+3y=1, 5x+7y=3.

need to know how to solve this equation
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1 Answer

line 1...2x+3y=1   or y=-(2/3)x+(1/3)

line 2...5x +7y=3

line2: 5x+7*[-(2/3)x +(1/3)]=3

5x -(14/3)x +(7/3)=3

(15/3)x -(14/3)x =(9/3)-(7/3)

(1/3)x=(2/3)

x=2

y=-(2/3)x +(1/3)...-(4/3)+(1/3)

y=-1
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