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mr Goodwill [35]
3 years ago
15

7k – 7(2 – 6k) = -8k – 14

Mathematics
1 answer:
devlian [24]3 years ago
3 0

Answer:

k = 0

Step-by-step explanation:

Step 1:

7k - 7 ( 2 - 6k ) = - 8k - 14   Equation

Step 2:

7k - 14 + 42k = - 8k - 14   Multiply

Step 3:

- 14 + 49k = - 8k - 14   Add

Step 4:

- 14 + 57k = - 14     Add 8k on both sides

Step 5:

57k = 0   Add 14 on both sides

Answer:

k = 0

Hope This Helps :)

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Sorry, it's late, and I'm a bad explainer.

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A straight line is also 180°.

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If you look at the equations, and put parentheses around 30 + x, (30 + x) and (2x - 12) should be the SAME NUMBER. So you could set them equal to each other to find x. (or you could also look at the picture and see that they both need/are missing the same angle)

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