a+b=1223 and a-b=571 what is the value of a and b
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HEY MATE
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cathrin12:
its ok
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if a+b=1223 so a=1223-b now put the value a in a-b=571 then 1223-b-b=571 => -2b=571-1223
=> -b=-652/2=> b= 326 and now put the value of b in a+b=1223 => a=1223-326 => 897
=> -b=-652/2=> b= 326 and now put the value of b in a+b=1223 => a=1223-326 => 897
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