Calculate the missing number in the equation:
(45−22)×19+25:5+?×3=82
We solve the exercise in parentheses:
23×19+25:5+?×3=82
We place the multiplication and division exercises inside parentheses:
(23×19)+(25:5)+?×3=82
We solve the exercise in parentheses:
437+5+?×3=82
We simplify:
442+?×3=82
We swap sections:
?×3=82−442
?×3=−360
We divide by 3
?=−120