mambechiquis mambechiquis

13-02-2021
Mathematics

contestada

which expressions is equivalent to -3z+17-(-15z)-(-4)

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loreal33 loreal33

13-02-2021

-3z + 17 + 15z + 4

Combine like terms.

12z + 21 is a similar expression.

Proof:

z = 2

-3(2) + 17 + 15(2) + 4

-6 + 17 + 30 + 4 = 45

12(2) + 21

24 + 21 = 45

Answer Link

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