Помогите 720:(5х -12)-56=34

Question

Помогите 720:(5х -12)-56=34

Answer 1

720/(5х-12)=34+56
720/(5х-12)=90
5х-12=8
5х=20
х=4

Comments

между3 и 4 действ 5х-12=720/90

Answer 2

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