Answer:
2(20+5)
2(10+15)
Step-by-step explanation:
When you add 20+5 together you get 25 which is the same to 2(25)
When you add 10+15 together you get 25 which is the same to 2(25)
Answer:
x=-5
Step-by-step explanation:
![\dfrac{2x-20}{3}=2x](https://tex.z-dn.net/?f=%5Cdfrac%7B2x-20%7D%7B3%7D%3D2x)
Multiply both sides by 3:
![2x-20=6x](https://tex.z-dn.net/?f=2x-20%3D6x)
Subtract 2x from both sides:
![-20=4x](https://tex.z-dn.net/?f=-20%3D4x)
Divide both sides by 4:
![x=-5](https://tex.z-dn.net/?f=x%3D-5)
Hope this helps!
4 floors with 6 class rooms each = 6*4 = 24 total class rooms.
24 class rooms x 34 students in each one = 816 total students.
Answer:
![- 11a(3a + 2b) \\ = - 11 \times 3 \times a \times a + ( - 11 \times 2 \times a \times a) \\ = - 33 {a}^{2} - 22ab](https://tex.z-dn.net/?f=%20-%2011a%283a%20%2B%202b%29%20%5C%5C%20%20%3D%20%20-%2011%20%5Ctimes%203%20%5Ctimes%20a%20%5Ctimes%20a%20%2B%20%28%20-%2011%20%5Ctimes%202%20%5Ctimes%20a%20%5Ctimes%20a%29%20%5C%5C%20%20%3D%20%20-%2033%20%7Ba%7D%5E%7B2%7D%20%20-%2022ab)
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<em><u>have </u></em><em><u>a </u></em><em><u>great </u></em><em><u>day </u></em>
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