Упростите выражение:
б) (1,2а-4)+(40-4,8а)
в)2,5(4-3у)-у+2,3
б)
(1,2а-4)+(40-4,8а)=
1,2a-4+40-4,8a=
-3,6a+36
в)
2,5(4-3у)-у+2,3=
10-7,5y-y+23=
-8,5y+33
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Verified answer
б)
(1,2а-4)+(40-4,8а)=
1,2a-4+40-4,8a=
-3,6a+36
в)
2,5(4-3у)-у+2,3=
10-7,5y-y+23=
-8,5y+33