zalbador10 zalbador10

15-09-2015
Mathematics

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-129 = -48 - n
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Аноним Аноним

15-09-2015

−129=−48−n

Simplify:

−129=−48+−n

Flip the equation.

−n−48=−129

Add 48 to both sides.

−n−48+48=−129+48

−n=−81

Divide both sides by -1.

−n/−1 = −81/−1

n=81

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