Question

[(e:8+5609);2-111]:10=400

Answer 1

[(e:8+5609):2-111]=4000
(e:8+5609):2=4111
e:8+5609=8222
e:8=2613
e=20904

Answer 2

(e:8+5609):2-111=400*10
(e:8+5609):2-111=4 000

(e:8+5609):2=4 000+111
(e:8+5609):2=4 111

(e:8+5609)=4 111*2
e:8+5609=8 222

e:8=8 222-5609
e:8=2 613

e=2 613*8
e=20 904