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atroni [7]
3 years ago
10

Given 16 = −5 + z4solve for z

Mathematics
2 answers:
AysviL [449]3 years ago
8 0
Hi,

16 = - 5 + z4 \\ - 4z + 16 = - 5 \\ - 4z = - 5 - 16 \\ - 4z = -21

Now just divide both sides of equation by -4.

z = \frac{21}{4}

Simplify:

z = 5 \frac{1}{4} \: \: \: \: \: \: \: \: \: \: \: \: \: fraction \: result

Decimal form:

z = 5.25 \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: decimal \: result

Hope this helps.
r3t40
dmitriy555 [2]3 years ago
3 0

69 is the answer that makes the most sense. all the rest would not add up

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