解:76+141-59+124等于( 282 ) ∵已知需求出76+141-59+124等于多少 X - Y + Z = X + Z - Y ∴76 + 141 - 59 + 124 = (76 + 124)+(141 - 59) = 200 + 82 = 282 答:76+141-59+124等于282