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stiks02 [169]
3 years ago
12

How did you get -1? In the problem xm=x+z ,for x

Mathematics
1 answer:
lys-0071 [83]3 years ago
3 0
Remember, we can do anything to an equation as long as you do it to both sides

and distributive proeprty, reversed
ab+ac=a(b+c)

xm=x+z
minus x from both sides
xm-x=z
xm-1x
undistribute x
x(m-1)=z
divide both sides by (m-1)
x=\frac{z}{m-1}
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