расставь скобки так чтобы равенства стали верными
75+20:5-1=18 80:5+3*5=50
75+20:5-1=78 80:5+3*5=4
75+20:5-1=80 80:5+3*5=95
75+20:5-1=18 80:5+3*5=50
75+20:5-1=78 80:5+3*5=4
75+20:5-1=80 80:5+3*5=95
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(75+20):5-1=18 80:(5+3)*5=5075+(20:5)-1=78 80:(5+3*5)=4
75+20:(5-1)=80 (80:5+3)*5=95