Which Step should be performed to isolate X

1 answer:

7 0

If you're talking x in particular, it can't be isolated. See, if we have this equation, x=5, we divide the Answer by the Answer, so 5/5=1. We divide the Answer by x, so x would appear x/5. So, x/5=1

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5(wx-v)=9(x+v)<br> make x the subject

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Expand the brackets first
5(wx-v) = 9(x + v)
5wx - 5v = 9x + 9v

Get all x's on one side and everything on on the other side
9x - 5wx = 9v + 5v

factorise out the x
x(9-5w) = 14v

then divide by 9-5w
x = 14v/(9-5w)

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