а) 57х×101-68у×101+46z×101=5757x-6868y+4646z
б) 14z+49+42t+8z-4-20t=22z+45+22t
в) 4700а-9300b+7800/100=470a-93b+78
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Б) (2z+7+6t)*7+4*(2z-1-5t)= 7*2z + 7*7+ 6t*7 + 4*2z-4-5t*4=14z+49+42t+8z-4-20t= 22z+45+22t
В) (47000а-9300b+7800):100= (47000а-9300b+7800)/100= 100(470a-93b+78)/100= 470a-93b+78
а) 57х×101-68у×101+46z×101=5757x-6868y+4646z
б) 14z+49+42t+8z-4-20t=22z+45+22t
в) 4700а-9300b+7800/100=470a-93b+78
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