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fomenos
2 years ago
12

Directions: Fir 7(9 + k) = 84 W

Mathematics
2 answers:
Ivenika [448]2 years ago
5 0
K = 3

To find K:

7 (9 + k) = 84
63 + 7k = 84
7k = 21
21 / 7
k = 3
lyudmila [28]2 years ago
5 0

Answer:

<em><u>Answer is below</u></em>

Step-by-step explanation:

<u><em>Simplify both sides of the equation.</em></u>

<u><em /></u>7(9+k)=84\\(7)(9)+(7)(k)=84\\Distribute\\63+7k=84\\7k+63=84<u><em /></u>

<u><em>Subtract 63 from both sides</em></u>

<u><em>.</em></u>7k+63-(63)=84-(63)\\7k=21

<u><em>Divide both sides by 7</em></u>

<u><em /></u>7k/7=21/7\\k=3<u><em /></u>

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Answer:

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Step-by-step explanation:

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Do this by taking the negative inverse of the first line

m = -7/3

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