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nirvana33 [79]
3 years ago
9

What is an equivalent expression for 2x + 10x and 2(x-4) + x

Mathematics
1 answer:
tester [92]3 years ago
6 0
2x+10x combine like terms
12x
2(x-4)+4 Distribute 2
2x-8+4
combine like terms
2x-4
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Please help work this equation
Flauer [41]

Hi!

<u>Given these two equations:</u>

x = y + 8

x + 4 = 2(y + 4)

We want to solve using the substitution method. Knowing that x is equal to y + 8, we can simply plug in 'y + 8' in for x in the second equation, like so:

(y+8)+4=2(y+4)

Combine like terms on both sides:

y+12=2y+8

Subtract y from both sides:

12=y+8

Subtract 8 from both sides:

y=4

Now, we can simply plug the y value in to the first equation, and solve for x:

x=4+8

Simplify:

x=12

<h3>Therefore, x is equal to 12 and y is equal to 4.</h3>

<u>Learn more about the substitution (and also elimination!) method here:</u>

brainly.com/question/14619835

4 0
2 years ago
What is the 100th term in the following arithmetic number pattern: 2,7,12
ivanzaharov [21]
So the change in between terms is 5 so you would put 5x, then for the first term, which is 2, 5*1(x)(because it's first term) then the difference between 5-2(because it's the 2nd term) So you would plug 100 in for x so 5(100)-3=497. Hope this helped!
3 0
3 years ago
jessie wants to save the same amount of money each week for a trip. he needs $3,060 if the trip is 36 weeks away, how much money
Ierofanga [76]
500 a week hope this helps
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Read 2 more answers
A baker decorates 42 cupcakes in 30 minutes. She decorates cupcakes at a constant rate. How many cupcakes can the baker decorate
jolli1 [7]
Divide 42 by 30 and that should be your correct answer. 

hope this helps.
8 0
3 years ago
Read 2 more answers
Simplify:<br> 3(8) ° . (3) -2
jek_recluse [69]
3 x 8 = 24

3 x -2 = -6

reply if you this was wrong or you needed a different answer pls >:(
3 0
4 years ago
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