123:3+2+123-25=
x+2314=5678
236+3=
1516515:15=
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x + 32 = 23 + 24.
x + 32 = 47
x = 47 - 32.
x = 15.
x + 123 = 2314 + 1234
x + 123 = 3548.
x = 3425.
25+(x-5)=123-(15-123)
=>x-5+25=123-15+123
=>x+20=246-15=231
=>x=231-20=211
c: -62+x=-14+46
=>\(x-62=46-14=32\)
=>\(x=32+62=94\)
d: \(25+\left(x-5\right)=-123-\left(15-123\right)\)
=>\(x-5+25=-123-15+123\)
=>\(x+20=-15\)
=>\(x=-15-20=-35\)
1. \(\dfrac{-1}{7}-\dfrac{1}{8}=\dfrac{-8-7}{56}=\dfrac{-15}{56}.\)
2. \(\dfrac{15}{48}-\dfrac{5}{12}=\dfrac{5}{16}-\dfrac{5}{12}=-\dfrac{5}{48}.\)
3. \(\dfrac{-3}{15}-\left(\dfrac{-3}{25}\right)=\dfrac{-1}{5}+\dfrac{3}{25}=\dfrac{-2}{25}.\)
4. \(\dfrac{1}{15}-\dfrac{3}{5}=\dfrac{1-9}{15}=-\dfrac{8}{15}.\)
1. \(\dfrac{-1}{7}-\dfrac{1}{8}=\dfrac{-8-7}{56}=-\dfrac{15}{56}.\)
2. \(\dfrac{15}{48}-\dfrac{5}{12}=\dfrac{5}{16}-\dfrac{5}{12}=-\dfrac{5}{48}.\)
3. \(\dfrac{-3}{15}-\left(-\dfrac{3}{25}\right)=\dfrac{-1}{5}+\dfrac{3}{25}=-\dfrac{2}{25}.\)
4. \(\dfrac{1}{15}-\dfrac{3}{5}=\dfrac{1-9}{15}=-\dfrac{8}{15}.\)
1+1=2
2+9=11
3+5=8
6+10=16
13+15=28
123+123=246
23+23+25=71
k cho chị nha thanks
1+1=2
2+9=11
3+5=8
6+10=16
13+15=28
123+123=146
23+23+25=71
NHớ k cho mình nha
Good luck
\(25+\left(x-5\right)=-13-\left(15-123\right)\\ 25+x-5=-13-\left(-108\right)\\ 20+x=95\\ x=95-20=75\)
tham khảo
25+ (x-5)=-13-(15-123)
25+ (x-5)=13-15+123
25+ (x-5)=95
x-5=75-25
x=70+5
x=75
a) \(=\frac{3}{17}-\frac{2}{345}+\frac{5}{12}+\frac{2}{345}-\frac{3}{17}+\frac{1}{12}\)
\(=\left(\frac{3}{17}-\frac{3}{17}\right)+\left(\frac{2}{345}-\frac{2}{345}\right)+\left(\frac{5}{12}+\frac{1}{12}\right)\)
\(=\frac{6}{12}=\frac{1}{2}\)
b) \(=-\frac{49}{25}-\frac{5}{36}+\frac{4}{123}+\frac{49}{25}-\frac{4}{123}-\frac{1}{36}\)
\(=\left(-\frac{49}{25}+\frac{49}{25}\right)+\left(\frac{4}{123}-\frac{4}{123}\right)-\left(\frac{5}{36}+\frac{1}{36}\right)\)
\(=-\frac{6}{36}=-\frac{1}{6}\)
gì?1+1=2 á,NoNoNo