(+3) + ( -1) + ( -6) = (+7) + (+7) + (+9) =


(+9) + ( -3) + (+5) = ( -8) + (+7) + (+4) =


(+2) + ( -7) + ( -7) = ( -5) + ( -3) + (+9) =


(+1) + (+1) + ( 0) = ( -7) + (+1) + (+8) =


(+7) + (+4) + (+2) = (+2) + (+8) + (+3) =