math

Uranus is believed to have 13 more satellites than Neptune also Saturn is now believed to have 8 more than twice the number of satellites as Uranus .total number of satellites for these planets is 103.how many for each planet?

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  1. N = U - 13

    S = 2U + 8

    U + N + S = 103

    Substitute U-13 for N and 2U+8 for S in the third equation and solve for U. Insert that value into the first equations to solve for N and S. Check by putting all values into the third equation.

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