Question

Решите уравнения :
(720:x-2)+40=128
(4×x+20)+720=900
(X×5+25)-415=60
900-(4*X-60)=360
(42:X-7)×30=420
2×(36-52:X)=20
(40×X-40):4=30
480:(X:4+1)=64:8

Answer 1

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