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Gemiola [76]
4 years ago
10

13 please I have no idea what the steps for this is

Mathematics
1 answer:
Ilya [14]4 years ago
6 0

Answer:

UV=142

Step-by-step explanation:

21x-13=10x+31

+13 +13

21x=10x+44

-10x=-10x

11x=44

÷11 ÷11

x=4

now substitute 4 in place of x (only have to solve one)

21(4)-13= 71

now multiply your answer by 2

71×2=142

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Step-by-step explanation:

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3 years ago
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Two equations are given below: a – 3b = 22 a = b – 2 What is the solution to the set of equations in the form (a, b)? (–10, –8)
aliya0001 [1]
Hi Kristian

a - 3b = 22
a = b - 2

We need to solve a = b -2 for a
First, we need to substitute b - 2 for a in a - 3b = 22
a - 3b = 22
b - 2 - 3b = 22
-2b - 2 = 22
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Now substitute -12 for b in a = b - 2
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Thus, the solution is a = -14 and b = -12

The correct option is the last one (-14,-12)


If you have questions about my answer, please let me know.


Good luck! 

4 0
3 years ago
Matthew and Andrew leave an intersection at
cestrela7 [59]
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3 0
3 years ago
20 is 60% of what number
Lilit [14]

Answer:

33.33

Step-by-step explanation:

60% of 33.33 is 20. 100% of 33.33 is 33.33, therefore 60 percent of 33.33 equals 20.

3 0
4 years ago
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Sloan [31]

Answer:

5(6x-1)

Step-by-step explanation:

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6x[3+(4-2)]-10+5

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Step 2 Add the Numbers:

6x[3+2]-10+5

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So the answer is 5(6x-1).

Hope You understand.

8 0
2 years ago
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