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17 July, 02:56

Eliminate U and solve for J, U=JW, N=UW

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  1. 17 July, 03:11
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    First, rearrange U=JW for J. You should get J=U/W.

    Next, solve for U in N=UW. You should get U=N/W

    Now, substitute U=N/W for U in J=U/W. Your equation should now be J = (N/W) / W.

    Since, this is bad form, multiply 1/W by the reciprocal of N/W. Your equation should now be J=W / (WN).

    Since, W/W=1, then all that is left is 1/N.

    Therefore J=1/N.
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