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\(50-2^3=\frac{x-5}{x}-23\)
=>\(50-8=1-\frac{5}{x}-23\)
=>\(42=-22+\frac{5}{x}\)
=>\(\frac{5}{x}=-22-42\)
=>\(\frac{5}{x}=-64\)
=>\(x=-\frac{5}{64}\)
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bai thi .....................kho..........................kho..............troi.................thilanh.............................ret..................wa.........................dau................wa......................tich....................ung.....................ho.....................cho............do.................lanh
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trả lời tiếp nè
c) 3.(x+1)=96-42
3.(x+1)=54
x+1=54:3
x+1=18
x=18-1
x=17
tick nha
218 - x = 735-541
218 - x = 194
x = 218 - 194
x = 24
Đúng 10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
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\(\frac{2}{3}=\frac{x}{6}\)
\(\Leftrightarrow3.x=2.6\)
\(\Leftrightarrow3.x=18\)
\(\Leftrightarrow x=18:3\)
\(\Leftrightarrow x=6\)
\(\frac{2}{3}=\frac{x}{6}\)
\(=>\frac{4}{6}=\frac{x}{6}\)
\(=>x=4\)
\(KL:x=4\)
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Ta có: \(\left(x+7\right)⋮\left(x+2\right)\)
\(\Rightarrow\left(x+2\right)+5⋮\left(x+2\right)\)
\(\Rightarrow5⋮\left(x-2\right)\)
\(\Leftrightarrow x+2\in(-1;+1;-5;+5)\)
\(\Leftrightarrow x\in\left(-3;-1;-7;3\right)\)
Vậy \(x\in\left(-3;-1;-7;3\right)\)
Mk kon bít đánh dấu ngoặc nhọn! Sorry nhak!
993/23
23.[42-x]=27
[42-x]=27:23
[42-x]=27/23
x=42-27/23
x=939/23