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alexandr1967 [171]
3 years ago
11

Solve for the variable. 8(x + 100) - 3 = 837​

Mathematics
1 answer:
Varvara68 [4.7K]3 years ago
5 0

Answer:

x=5

Step-by-step explanation:

I had it for something in school and it was right.

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X = -2y + 27<br> x - 3y = -18<br> How would I solve by substitution step by step?
Naddika [18.5K]

Answer:

Step-by-step explanation:

•Solve equation 1 for the variable x.

x = 3y - 27

•Plug this in for variable x in equation 2.

2×(3y-27) - 2y = 18

4y = 36

•Solve equation 2 for the variable y.

4y = 36

y = 9

•By now we know this much:

x = 3y-27

y = 9

•Use the y value to solve for x.

x = 3(9)-27 = 0

•Solution: {x,y} = {0,9}

4 0
3 years ago
PLEASE HELP! I WILL MARK THE BRAINLIEST IF YOU HAVE THE CORRECT ANSWER!! When Sandy and Allen's mother decorates the house for a
aleksandr82 [10.1K]
Sandy would probably take just as long as her mother because it says their mother takes 5 hours if decorating the house alone so if sandy is doing it alone it would also probably take her 5 hours as well. If this is wrong I’m sorry.
7 0
3 years ago
Read 2 more answers
I need help I don't understand this.
AleksAgata [21]

Answer:

64°

Step-by-step explanation:

angle 1+40°=104°(sum of two non adjacent interior angles is equal to opposite exterior angle)

angle 1=104°-40°

angle 1=64°

3 0
3 years ago
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Explain why it is necessary to rename 4 1/4 if you subtract 3/4 from it.
Ede4ka [16]
Renaming fractions is also called "borrowing" - it's because you borrow fraction parts from the wholes of a mixed number.

this is necessary when, if you subtract, the subtracted fraction part is bigger than the fraction part of the number from which you subtract: so here 3/4 is bigger than 1/4 and we need to borrow

if we wanted to subtract 3/4 from 4 1/4 then you're stuck: how do you subtract 3/4 from 1/4? you can't, but you can change 4 1/4 into 3 5/4 !!!! it's the same number, you just borrowed from the whole unmbers and put into the fraction!

now we can subtract: 3 5/4-3/4 is 3 2/4


3\frac{5}{4}- \frac{1}{3}  =3 \frac{2}{4} =3\frac{1}{2}
8 0
3 years ago
What is 6-2p=p+9 ?Because I don't know it​
nikklg [1K]

Hey there!

  • Firstly, you have to \bold{simplify} each of the sides of your equation
  • \bold{6-2p-p+9\downarrow}
  • \bold{6+(-2p)=p+9\downarrow}
  • \rightarrow\bold{-2p+6=p+9}
  • Now that you have that  portion out of the way, we could  move on to our second step... which is to \bold{subtract} by the value of  \bold{p} on each of your sides
  • \bold{-2p+6-p-p+9-p\downarrow}
  • \rightarrow\bold{-3p+6-9} (you get this because we solve the particular equation we added above)
  • Thirdly, you have to \bold{subtract} by the number \bold{6} on each of your sides
  • \bold{-3p+6-6=9-6\downarrow}
  • \bold{Cancel:6-6} because it equals to \bold{0}
  • \bold{Keep:9-6} because it brings us closer and closer to the answer of \bold{p}
  • Fourthly, we have to \bold{divide} by  the number \bold{-3} on each of your sides
  • \bold{\frac{-3p}{-3}=\frac{3}{-3}}
  • \boxed{\boxed{\bold{Answer:p=-1}}} \checkmark

Good luck on your assignment and enjoy your day!

~\frak{LoveYourselfFirst:)}

8 0
4 years ago
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