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arsalanfazil7
@arsalanfazil7
July 2022
1
14
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раскройте скобки и решите.
а) -(7*8-20)+7*8
б)+(99-5+8)-17
в)-(2*5+48)+23
г)-(32-74)-74
д)+(-120-9*9)-81
е)+(120-9в квадрате)+81
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Makantash
А) -(7*8-20)+7*8 = -(56-20)+56=-56+20+56=20
б) +(99-5+8)-17=99-5+8-17=85
в) -(2*5+48)+23= -(10+48)+23=-10-48+23= -35
г)-(32-74)-74 = -32+74-74 = -32
д)+(-120-9*9)-81 = -120 - 81-81 = 282
е)+(120-9в квадрате)+81
= 120-81+81 = 120
11 votes
Thanks 10
arsalanfazil7
thanks Makantash
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Answers & Comments
б) +(99-5+8)-17=99-5+8-17=85
в) -(2*5+48)+23= -(10+48)+23=-10-48+23= -35
г)-(32-74)-74 = -32+74-74 = -32
д)+(-120-9*9)-81 = -120 - 81-81 = 282
е)+(120-9в квадрате)+81 = 120-81+81 = 120