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3 years ago

Can someone solve 5 + 2x = + 6 and n - 3n = 14 - 4n and 7 ( 5a - 4 ) - 1 = 14 - 8a

Mathematics

2 answers:

Vladimir79 [104]3 years ago

8 0

Step-by-step explanation:

5 + 2x = + 6

2x=6-5

2x=1

$x \ = \frac{1}{2}$

n - 3n = 14 - 4n

-2n= 14 -4n

-2n+4n=14

2n=14

n=7

7(5a - 4 ) - 1 = 14 - 8a

35a-28-1=14-8a

35a-29=14-8a

35a+8a=14+29

43a=43

a= 1

professor190 [17]3 years ago

6 0

Answer:

5 + 2x = 6

2x = 6-5

2x = 1

x = 0.5

n -3n = 14 -4n

-2n = 14-4n (since 4n is negative, change the sign to make it positive and then add 4n to both sides of the equation)

2n = 14

n = 7

7 (5a - 4) - 1 = 14 - 8a

35a - 28 - 1 = 14 -8a

35a -29 = 14 - 8a

43a = 43

a = 1

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$A=P(1+\frac{r}{n})^{nt}$

where

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n is the number of times interest is compounded per year

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$A=15,192(1+\frac{0.16}{1})^{1*3}=\$23,713.13$

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