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galben [10]
3 years ago
14

Could someone help me? I can't understand anything

Mathematics
1 answer:
borishaifa [10]3 years ago
8 0

Answer:

I will only help with number one so you can learn how to do it. If you still dont understand, let me know and ill be here to help.

Step-by-step explanation:

\frac{x}{4}> 21

what you have to do is get the x to be on its own. So we need to get rid of the 4. Since it's a fraction and fractions are division, you need to multiply both sides by 4. The reason as to why you multiply is because multiplication is the opposite if division. By multiplying both sides you get rid of the four and you are left with:

x>84

Again, let me know if you still need help.

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Deffense [45]
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3 years ago
twice the difference of a number and 7 is equal to three times the sum of the number and 7. find the number​
otez555 [7]

Answer:

- 35  

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2(x - 7) = 3(x+7)

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Answer:

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3 years ago
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