b) 32 + 4x = 12. 7 – 24
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![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
18 - 4\(x\) = -20 - 6\(x\)
-4\(x\) + 6\(x\) = - 20 - 18
2\(x\) = - 38
\(x\) = - 19
h, -15 \(\times\) 24 = -7\(x\) + 32
7\(x\) = 360 + 32
7\(x\) = 392
\(x\) = 392:7
\(x\) = 56
i, 15\(x\) -3.(4\(x\) - 6) = -12 + 36
15\(x\) - 12\(x\) + 18 = 24
3\(x\) = 24 - 18
3\(x\) = 6
\(x\) = 2
k, -10\(x\) - 27 = -7\(x\) + 33
-27 - 33 = -7\(x\) + 10\(x\)
3\(x\) = -60
\(x\) = -20
![](https://rs.olm.vn/images/avt/0.png?1311)
a)\(\dfrac{4}{12}+\dfrac{6}{7}\)+\(\dfrac{8}{24}\)=\(\dfrac{32}{21}\)
b)\(\dfrac{9}{18}+\dfrac{7}{12}-\)\(\dfrac{13}{32}\)=\(\dfrac{65}{96}\)
a)\(\dfrac{8}{24}+\dfrac{6}{7}+\dfrac{8}{24}\)
\(\left(\dfrac{8}{24}+\dfrac{8}{24}\right)+\dfrac{6}{7}\)
\(\dfrac{2}{3}+\dfrac{6}{7}\)= \(\dfrac{14}{21}+\dfrac{18}{21}\)
\(\dfrac{32}{21}\)
b)\(\dfrac{65}{96}\)
![](https://rs.olm.vn/images/avt/0.png?1311)
`a,`
\((- 5) .x + 17 = - 23\)
`\Rightarrow (-5)x = -23 - 17`
`\Rightarrow (-5)x =-40`
`\Rightarrow x = (-40) \div (-5)`
`\Rightarrow x = 8`
Vậy,` x = 8`
`b,`
\(8 + 4x = - 24\)
`\Rightarrow 4x = -24 - 8`
`\Rightarrow 4x = -32`
`\Rightarrow x = -32 \div 4`
`\Rightarrow x = -8`
Vậy, `x = -8`
`c,`
\(32 – 12 + x = -10\)
`\Rightarrow 20 + x = -10`
`\Rightarrow x = -10 - 20`
`\Rightarrow x = -30`
Vậy, `x = -30`
`d,`
\(x – 87 + 13 = - 100\)
`\Rightarrow x - 87 = -100 - 13`
`\Rightarrow x - 87 = -113`
`\Rightarrow x = -113 + 87`
`\Rightarrow x = -26`
Vậy, `x = -26.`
![](https://rs.olm.vn/images/avt/0.png?1311)
\(32+4x=12.7-24.\)
\(32+4x=84-24\)
\(32+4x=60\)
\(4x=60-32\)
\(4x=28\)
\(x=7\)
7 nhé bạn