Răspuns :
19+(42-18)-2×9
=19+24-18
=43-18
=25
Acesta e raspunsul corect...
=19+24-18
=43-18
=25
Acesta e raspunsul corect...
19+(6×7-18)-2×9=24
=19+(42-18)-2×9
=19+24-2×9
=19+24-18
=43-18
=25
=19+(42-18)-2×9
=19+24-2×9
=19+24-18
=43-18
=25