150÷(45÷х+35)=23÷9
(720÷х-2)+40=128
(4×х+20)+720=900
(х×5+25)-415=60
900-(4×х-60)=360
(42÷х-7)×30=42
2×(36-52÷х)=20
(40×х-40)÷4=30
480÷(х÷4+1)=64÷8
помогите пж 20+ баллов дам + ЛУЧШИЙ ОТВЕТ!!!!​
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