MaryJaneBarton MaryJaneBarton

24-03-2017
Mathematics

contestada

7x-4y=20 for y when x=3

Respuesta :

24-03-2017

I think it is y=-.25
7*3 - 4y = 20
21 - 4y = 20
subtract 21 from each side
- 4y = - 1
divide each side by - 4
y= -.25

Answer Link

nightmist nightmist

24-03-2017

the answer to 7x-4y=20 for y when x=3 is y = 25 i think

Answer Link

Otras preguntas

square root of 64 is 8. 8x8=64 cube root of 64 is 4. 4x4x4=64 please help i will fan,medal,thank, and rate. Just a simple and easy explanation pls:)

Which type of force is the one of the greatest enemies of athletes in the olympic winter games? in what other situations does this force exist outside of the wo

How do eukaryotic cells differ from each other

Choose three nationalities of people in central america.

Which element will share similar properties as fluorine ( f.? a neon (ne) b chlorine (cl) c oxygen (o) d sodium (na)

Solve 3-2/9b = 1/3b -7

Bile is compared to dishwashing soap because it performs which function? a. breaks down fats b. cleans the intestine c. disinfects the bacteria present d. c

What does the word patriarchal mean?what does the word empire mean??

what complaints of the colonists does paine want foreign nations to know about?

Choose three nationalities of people in central america.