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7.5 Exercise 180

Avg difficulty 2.5

Evaluate using the distributive property.

If y=−18,y = −18 , evaluate
ⓐ −(y−18)- \left(y - 18\right) and
ⓑ −y+18- y + 18 to show that −(y−18)=−y+18- \left(y - 18\right) = - y + 18

OpenStax Prealgebra 2e, 7.5 Systems of Measurement, exercise 180

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Adapted from Prealgebra 2e © 2020 Rice University. Licensed under CC BY 4.0. Source: Prealgebra 2e. Imported at revision 77a933c.