\(-7\left(4-5\right)+2\left(7x-14\right)=28\)
\(7+14x-28=28\)
\(14x-21=28\)
\(14x=28+21\)
\(14x=49\)
\(x=\frac{49}{14}\)
\(x=\frac{7}{2}\)
\(-7\left(4-5\right)+2\left(7x-14\right)=28\)
\(7+14x-28=28\)
\(14x-21=28\)
\(14x=28+21\)
\(14x=49\)
\(x=\frac{49}{14}\)
\(x=\frac{7}{2}\)
-7(3x-5)+2(7x-14)=28
-7.(3x-5)+2.(7x-14)=28
-7×(3x-5)+2(7x-14)=28
-7(3x-5)+2(7x-14)=28
tìm x thuộc Z, biết:
-7(3x-5)+2(7x-14)=28
a). -7.(3x-5)+2.(7x-14)=28
b). 5.(3-2x)+5.(x-4)=6-4x
c). -5.(2-x)+4.(x-3)=10x-15
d). 2.(4x-8)-7.(3+x)=|-4|.(3-2)
Tìm x biết
-7.(3x-5)+2.(7x-14)=28
Giúp mình với
Tim x, biet:
1) -5.(2-x)+4.(x-3)=10.x-15
2) 2.(7x-14)-7.(3x-5)=28
3) 17+x=7+6.x
4) 4.!x-2!=8
5) 4.x-5.(-3+x)=7
mik dag gap lam tra loi nhanh va chi tiet giup mik
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-7.(3x-5)+2.(7x-14)=28