Seudónimo Seudónimo

09-02-2018
Mathematics

contestada

combine like terms to create an equivalent expression:
4z-(-3z)

Respuesta :

JonHenderson55 JonHenderson55

09-02-2018

The answer is: " 7z " .
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Note: " 4z - (-3z) = ? " ;

Note that "subtracting a negative" is the same thing as "adding a positive" ;

→ " 4z - (-3z) = 4z + 3z = 7z .
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The answer is: " 7z " .
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gabbystuart3 gabbystuart3

26-07-2018

7z. 2 negs make a pos. But two wrongs do not make a right.

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