<h3><u>The first number is equal to 21.</u></h3><h3><u>The second number is equal to 23.</u></h3><h3><u>The third number is equal to 25.</u></h3>
x + x + 2 = 3(x + 4) - 31
Combine like terms
2x + 2 = 3(x + 4) - 31
Distributive property.
2x + 2 = 3x + 12 - 31
Combine like terms.
2x + 2 = 3x - 19
Subtract 2x from both sides.
2 = x - 19
Add 19 to both sides.
21 = x
The value of the first number is 21.
The integers would be 15, 17, 19. 15+17=32x2=64 19x3+57 64-57= 7 Your answer would be 19
Answer:
Ellen spent $2.40 on her lunch.
Step-by-step explanation:
Let,
x be the total amount Ellen had.
Amount spent on lunch = ![\frac{x}{2}](https://tex.z-dn.net/?f=%5Cfrac%7Bx%7D%7B2%7D)
Amount left after lunch = ![x-\frac{x}{2}=\frac{2x-x}{2}=\frac{x}{2}](https://tex.z-dn.net/?f=x-%5Cfrac%7Bx%7D%7B2%7D%3D%5Cfrac%7B2x-x%7D%7B2%7D%3D%5Cfrac%7Bx%7D%7B2%7D)
Amount spent on movie = ![\frac{1}{2}*\frac{x}{2}=\frac{x}{4}\\](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7D%2A%5Cfrac%7Bx%7D%7B2%7D%3D%5Cfrac%7Bx%7D%7B4%7D%5C%5C)
Amount she has left = $1.20
Total amount = Lunch amount + Movie amount + Amount left
x = ![\frac{x}{2}+\frac{x}{4}+1.20](https://tex.z-dn.net/?f=%5Cfrac%7Bx%7D%7B2%7D%2B%5Cfrac%7Bx%7D%7B4%7D%2B1.20)
![x = \frac{2x+x+4.80}{4}\\4x=3x+4.80\\x = 4.80](https://tex.z-dn.net/?f=x%20%3D%20%5Cfrac%7B2x%2Bx%2B4.80%7D%7B4%7D%5C%5C4x%3D3x%2B4.80%5C%5Cx%20%3D%204.80)
Amount spent on lunch =
= $2.40
Hence,
Ellen spent $2.40 on her lunch.
5 (3m+2p) -4m= 15m +10p -4m
=11m +10p
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13p+11m-3p=10p -11m
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Yes, 5 (3m+2p) -4m is equivalent to the expression 13p+11m-3p as i worked out for you.. Hope this helps you!!! =')