Solve the simultaneous linear equation by substitution method:

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Let suppose that
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Let suppose that 1/a=m and 1/b=n then our equation is 2xm+yn =2 and xm-yn=4 from equation 1st value of yn= 2-2xm by putting the value of yn in equation 2 is ;xm-2+2xm=4 then 3xm-2=4 hence xm= 2 , x*1/a=2 then x=2a
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