emuzzy06 emuzzy06
  • 13-09-2020
  • Mathematics
contestada

2n-21 = n over 4 (in fraction form) two column proof

Respuesta :

ropafadzonyadome
ropafadzonyadome ropafadzonyadome
  • 13-09-2020

Step-by-step explanation:

2n-21=n/4 (× b.s by 4)

4(2n-21)=n

8n-84=n

8n-n=84

7n=84 (÷ b.s by 7)

n=12

Answer Link

Otras preguntas

what is the figurative meaning of the phrase "set the wall between us" in the poem "Mending Wall"?
Shania's test scores in 8 subjects were 88, 91, 85, 74, 69, 72, 80, and 87. Which measure should Shania use to find how much the scores on her tests vary, on a
What's the slop of 4x+7y
solve for n 2 > 0.9(n+8.6)
Sarah is 27 years old and is retiring at the age of 65. When she retires, she estimates that she will need a semiannual income for 20 years. If Sarah contribute
Which Sunni Muslim scholar is BEST known for traveling throughout most of the Islamic world in the 14th century, keeping detailed records of his observations?
What causes the federal government to borrow money? a.)deficit c.)surplus b.)balance budget d.)increase value of money
Which functions represent the arithmetic sequence 8, 1.5, –5, –11.5 . . . ? Check all that apply. f(n) = –6.5n + 14.5 f(n) = –1.5n + 9.5 f(n) = 6.5n + 1.5 f(1)
Classify the angles.
Find m<4 if m<1 = 100