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11x-7x+x=325
5x = 325
x = 325 :5
x = 65
Vậy x = 65
k cho mk nhe
![](https://rs.olm.vn/images/avt/0.png?1311)
11x - 7x + x = 325
=> 5x = 325
=> x = 325 : 5
=> x = 65
Vậy x = 65
![](https://rs.olm.vn/images/avt/0.png?1311)
x.(11-7+1)=325
x.5=325
x=325:5
x=65
Nếu mọi người thấy đúng thì tick cho mình nhé!Thanks
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![](https://rs.olm.vn/images/avt/0.png?1311)
a.11x-7x+x=325
<=> 5x= 325
<=> x=65
b.5x+(-15)-3x=25
<=> 5x-3x= 25+15
<=> 2x=40
<=>x=20
![](https://rs.olm.vn/images/avt/0.png?1311)
\(\text{a. }-15+x=-4\)
\(\Rightarrow x=-4+15\)
\(\Rightarrow x=11\)
\(\text{Vậy }x=11\)
\(\text{b.}35-x=-12-3\)
\(\Rightarrow35-x=-15\)
\(\Rightarrow x=35+15\)
\(\Rightarrow x=50\)
\(\text{Vậy }x=50\)
\(\text{c.}11x-7x+x=325\)
\(\Rightarrow5x=325\)
\(\Rightarrow x=325\div5\)
\(\Rightarrow x=65\)
\(\text{Vậy }x=65\)
\(\text{d.}15-\left|x-3\right|=7\)
\(\Rightarrow\left|x-3\right|=15-7\)
\(\Rightarrow\left|x-3\right|=8\)
\(\Rightarrow\orbr{\begin{cases}x-3=-8\\x-3=8\end{cases}}\)
\(\text{Trường hợp : }x-3=-8\)
\(\Rightarrow x=-8+3\)
\(\Rightarrow x=-5\)
\(\text{Trường hợp : }x-3=8\)
\(\Rightarrow x=8+3\)
\(\Rightarrow x=11\)
\(\text{Vậy }x\in\left\{-5;11\right\}\)
a,-15+x=-4 b,35-x=-12-3
x=-4+15 35-x=-12+(-3)
x=11 35-x=-15
vậy x=11 x=35+15
x=50
vẫy=50
![](https://rs.olm.vn/images/avt/0.png?1311)
\(-5.\left(2-x\right)+4\left(x-3\right)=10x+15\)
\(-10+5x+4x-12=10x+15\)
\(9x-22=10x+15\)
\(10x-9x=-22-15\)
\(x=-37\)
\(7.\left(x-9\right)-5\left(6-x\right)=-6+11x\)
\(7x-63-30+5x=-6+11x\)
\(12x-93=-6+11x\)
\(12x-11x=-6+93\)
\(x=87\)
\(xy+14+2y+7x=-10\)
\(\left(xy+2y\right)+\left(14+7x\right)=-10\)
\(y\left(x+2\right)+7\left(2+x\right)=-10\)
\(\left(x+2\right)\left(y+7\right)=-10\)
Câu cuối mk chỉ biết làm đến đó thôi
bn tự làm nha
11x-7x+x=325
=>x.(11-7+1)=325
=>x.5=325
=>x=325:5
=>x=65
11x-7x+x=325
=>4x+x=325
=>5x=325
=>x=65