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olasank [31]
1 year ago
6

Solve for x. 3(x + 5)-2(x+2)=20 1 9 13

Mathematics
2 answers:
svetoff [14.1K]1 year ago
8 0

Answer:

the answer is 9

Step-by-step explanation:

if you use distributive property you'll find your answer

Nostrana [21]1 year ago
8 0

x = 9

Step-by-step explanation:

3(x+5)-2(x+2)=20

3x +15 - 2x - 4 = 20

3x - 2x = 20 + 4 - 15

x = 24 - 15

x = 9

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Help pls the first questions option is<br> 25,40,75<br> And the next option is <br> 40,75,140
Pachacha [2.7K]

Answer:

C is 40 and D is 75

Step-by-step explanation:

look at the angle

5 0
3 years ago
A+b=77,a-b=13 care sun nr
STALIN [3.7K]
It's a simultaneous equation:
Steps:
1.Number the equations..

a+b=77 -1
a-b=13 -2

2. Choose what variable you want to use. In this case I would use the "b". Since the signs in front of the "b's" are different, add the two equations together

a + b = 77
+ + +
a (-b) = 13

Which gives;
2a = 90

Then solve to find a:
2a=90
a= 90/2
a=45

3.Then plug the "a" value into any of the original equations to find the "b" value. I would use equation 1 since the all the variables are positive.

a + b = 77
(45) + b = 77
b=77-45
b=32

4.Solution

a=45
b=32
3 0
3 years ago
a restaurant used 9.6 ounces of cheese to make 6 slices of pizza. if each slice had the same amount of cheese, how much cheese w
inn [45]
9.6/6=1.6 ounces/slice of pizza
8 0
3 years ago
The number x is reduced by 25% and then halved
Maksim231197 [3]
Since it says the number  x , this means x represents a number , reduced by 25 means that this is most likely half of 25 so whats half of 25%?

well 5 * 5 = 25 , so here is your answer  = 5

8 0
3 years ago
Help with this question please!!
notsponge [240]
18x can also be expressed as:

= 2x * (4+5)
= 2x * 9
= 18x

ANSWER: 2x * (4 + 5)

Hope this helps! :)
3 0
3 years ago
Read 2 more answers
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