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Charra [1.4K]
3 years ago
11

Solve for k. 5 + 2k = 7

Mathematics
2 answers:
ryzh [129]3 years ago
7 0
So 5 + 2k = 7k




Hope this helps
igomit [66]3 years ago
6 0

Answer:

k = 1

Step-by-step explanation:

5 + 2k = 7

2k = 7 - 5

k = 2/2

k = 1

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2 years ago
Solve the system of equations. 3x – 4y = 8 18x – 5y = 10 x= y =<br>​
Zepler [3.9K]

Answer:

Step-by-step explanation:

Solution by substitution method

3x-4y=8

and 18x-5y=10

Suppose,

3x-4y=8→(1)

and 18x-5y=10→(2)

Taking equation (1), we have

3x-4y=8

⇒3x=4y+8

⇒x=( 4y+8)/ 3  →(3)

Putting x= (4y+8 )/3  in equation (2), we get

18x-5y=10

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x=4y+8

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2 years ago
Subtract. –7 – 12<br> a. –19<br> b. –5<br> c. 5<br> d. 19
den301095 [7]
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