skybae345 skybae345

07-03-2015
Mathematics

contestada

-2x+y=12
3x+2y=38
You have to use substitution to solve this problem

Respuesta :

07-03-2015

{-2x+y=12 => y=12+2x

{3x+2y=38

3x+2(12+2x)=38

3x+24+4x=38 /-24

7x=14 /:7

x=2

y=12+2*2=12+4=16

y=16

Solution: (2; 16)

Answer Link

Otras preguntas

The four types of entrepreneur described by Arthur Cole were the Innovator, the Organization Builder, the Over-Optimistic Promoter, and the Calculating _____. I

What actions by the British led to American resentment?

Which factor is most important to consider when evaluating a journal article about global warming? A) Is the article long enough? B) Does the article contain fa

Which of these statements best describes medical care in Bulgaria? Healthcare has been decentralized and local cities are now responsible for the healthcare fac

If a cone-shaped water cup holds 23 cubic inches and has a radius of 1 inch, what is the height of the cup? Use 3.14 to for pi. Round your answer to the nearest

As you are lifting a box, someone places extra weight on top of it. for your muscle to continue contracting and lifting the box, the muscle must ________.

Help with these questions!

What is the answer? Please help

Draw a line perpendicular to the line that contains the points (1, 8) and (4, 6) and passes through the point (−2, 8)

What was the artist's goal with the piece above? a to illustrate the power struggle between land and water b to illustrate the battle between man and nature c t