Simplifying the followingexpression6 + 2(3-9 + 5) + (- 9)
1 answer:
Answer:
-5
Step-by-step explanation:
First, distribute the 2 to the 3, -9, and 5. You will get 6 + 6 - 18 + 10 + (-9). Then, you can start from the beginning and work through combining the terms. The original equation is in bold after every step.
6 + 6 - 18 + 10 + (-9)
6+6 = 12
12 - 18 + 10 + (-9)
12-18 = -6
- 6 + 10 + (-9)
-6 + 10 = 4
4 + (-9)
4 - 9 = -5
Answer: -5
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Step-by-step explanation:
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Answer:
a) x = 4 cm
Step-by-step explanation:
x + 2x + 2x = 20 cm
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