D+60,19-(68,7-9,1),eсли d=21,021

Question

D+60,19-(68,7-9,1),eсли d=21,021

Answer 1

D + 60,19 - (68,7 - 9,1) = d + 60,19 -59,6 = d + 0,59
21,021 + 0,59 = 21,611