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25 February, 22:35

Solve each equation. check you solution.

(7t - 2) - (-3t + 1) = - 3 (1 - 3t)

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  1. 25 February, 22:52
    0
    (7t-2) - (-3t+1) = - 3 * (1-3t)

    First distribute:

    7t-2+3t-1 = - 3+9t

    Now get all the terms with 't' on the same side by subtracting/adding:

    7t+3t-9t = - 3+2+1

    Combine the terms:

    1t=0

    t=0

    Check:

    Plug in 0 for t and see if both sides of the equation come out the same:

    Does (7 (0) - 2) - (-3 (0) + 1) = - 3 (1-3 (0)) ?

    (-2) - (1) = - 3 (1) ?

    -3 = - 3?

    Yes! It works, so t=0!
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