It’s going to be positive
Answer:
-21
Step-by-step explanation:
3x - 3y
x = -3
y = 4
Substitute the variables x and y in the equation with the numbers they represent.
3(-3) - 3(4)
-9 - 12
-21
None of the answers you have proposed are correct.
1)
![\frac{5}{4}= \frac{25}{y} ](https://tex.z-dn.net/?f=%20%5Cfrac%7B5%7D%7B4%7D%3D%20%5Cfrac%7B25%7D%7By%7D%20%0A)
5y=100
y=20
2)
![\frac{x}{0.6} = \frac{9}{0.5}](https://tex.z-dn.net/?f=%20%5Cfrac%7Bx%7D%7B0.6%7D%20%3D%20%20%5Cfrac%7B9%7D%7B0.5%7D%20%20)
![\frac{10x}{6} = \frac{90}{5}](https://tex.z-dn.net/?f=%20%5Cfrac%7B10x%7D%7B6%7D%20%3D%20%20%5Cfrac%7B90%7D%7B5%7D%20)
50x=540
x=10.8
3) 2x=12
x=6
4) x-7+x
2x-7
5) x-x+4=4
If you need explanation just ask.
Answer:
The 3rd option.
Step-by-step explanation:
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