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hadzianna20
@hadzianna20
April 2023
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3.
8(2а - 3b + 1) - 2(5 - 3a - 12b).
4.
(3 + x) : (-12) = -7.
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Answers & Comments
kiratupichenko1999
8(2а-3b+1) -2(5-3a-12b) = 16a-24b+8-(10-6a-24b) =16a-24b+8-10+6a+24b=22a-2
(3+x):(-12) =-7
3+x=-7×(-12)
3+x=84
x=84-3
x=81
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Answers & Comments
(3+x):(-12) =-7
3+x=-7×(-12)
3+x=84
x=84-3
x=81