Question

(21*3+8)-17+(85-12+9-45)

Answer 1

use the order of operations and seperate your answer, then it's easy

Answer 2

91

Explanation:

(21)(3)+8−17+85−12+9−45

=63+8−17+85−12+9−45

=71−17+85−12+9−45

=54+85−12+9−45

=54+73+9−45

=54+82−45

=54+37

=91