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samaya02
@samaya02
July 2022
1
11
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найдите корни уравнение
а)4(х-3)-16=5(х-5)
б)15(2х-5)+2х=5(5х-15)-7
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ColdMand
4(x-3)-16=5(x-5)
4x-12-16=5x-25
4x-5x=-25+12+16
-x=3
x=-3
15(2x-5)+2x=5(5x-15)-7
30x-75+2x=25x-75-7
30x+2x-25x=-75-7+75
7x=-7
x=-1
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Answers & Comments
4x-12-16=5x-25
4x-5x=-25+12+16
-x=3
x=-3
15(2x-5)+2x=5(5x-15)-7
30x-75+2x=25x-75-7
30x+2x-25x=-75-7+75
7x=-7
x=-1