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TRẢ LỜI
$\text{$x$ + [($-$703) + 12] = $-$900}$
$\text{⇒ $x$ + ($-$691) = $-$900}$
$\text{⇒ $x$ = $-$900 + 691}$
$\text{⇒ $x$ = $-$209}$
$\text{Vậy $x$ = $-$209}$
Hãy giúp mọi người biết câu trả lời này thế nào?
51 vote
`x + [(-703) + 12] = -900`
`x + (-691) = -900`
`x = -900 - (-691)`
`x = -900 + 691`
`x = -209`
Vậy `x = -209`
Hãy giúp mọi người biết câu trả lời này thế nào?
51 vote
chuyển -691 sang bên kia thì là 691 mà
Đề nghị đọc kĩ bài Mik chú thích kĩ hơn nhé, nếu không có dòng thứ 3 thì nó cũng như bạn thôi
ờ như nào thì tùy
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