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03-07-2020
Mathematics

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Simplify and solve each of the following equations. a. 6 + 8x – 2 – 6x = 20 b. 10b – 3b – 5 – 2 = 14 c. 36 = 2r + 6r – 10 + 6 d. 95 = 47 + 4a – 22 + 6a

Respuesta :

03-07-2020

Answer:

a. x = 8

b. b = 3

c. r = 5

d. a = 7

Step-by-step explanation:

a. 2x + 4 = 20

2x = 16

x = 8

b. 7b - 7 = 14

7b = 21

b = 3

c. 36 = 8r - 4

8r = 40

r = 5

d. 95 = 25 + 10a

70 = 10a

a = 7

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