xakovibel xakovibel

23-10-2019
Mathematics

contestada

solve for X: d(−3+x)=kx+9

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jstation8 jstation8

23-10-2019

Answer:

d(−3+x)=kx+9

-3d+d+x=kx+9

-2d+x=kx+9

-9 -9

-2d-9+x=kx

/k /k

-2d-9+x=x

/-2 /-2

-9+x=-2+x

+9 +9

x=7+x

-x -x

x=7

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