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

Running the dishwasher only one and it's completely full is an example of. PLZ HELP ME :)

Natasha has a gross income of $66,429. She can make adjustments of $14,490 for business losses, $3,584 for business expenses, and $4,813 for constitutions to he

long division 4840÷90 help!

What part of a ship is the prow? a. the stern b. the most forward part of a ship’s bow c. the back end of a ship d. none of the above

How many hours of digging does it take for the depth of the hole to reach -28 feet

Suppose you cut a small square from a square sheet of cardboard

Discuss the continuity of the cosine, cosecant, secant and cotangent functions, ...?

SnCL2 is solid while SnCl4 is liquid ...?

Without dividing, do you expect 7/8 divided by 11/16 to be greater than or less than 1? Explain. ...?

For the past 20 years, the population of the invasive Asian Carp in the Mississippi River has skyrocketed while populations of native species have declined. W