04-06-2018
Mathematics

contestada

slove the system of equations 3x-7y=5 and 9y=5x+5

Respuesta :

jinc0930 jinc0930

04-06-2018

3x-7y=5

9y=5x+5
-5x+9y=5

3x-7y=-5x+9y
8x=16y
x=16y/8
x=2y

3(2y)-7y=5
-1y=5
y=-5

-5(9)=5x+5
-45-5=5x
x=-10

Answer Link

Otras preguntas

Find the midpoint of the segment between the points (15,−9) and (−2,−18) A. (172,92) B. (13,−27) C. (132,−272) D. (−13,27)

Because each supply chain process should add value to the products or services a company produces, a supply chain is frequently called a __________ chain.

The atmosphere is made up from 77 percent nitrogen (N2), 22 percent oxygen (02) and all other gases are less than one percent of the atmosphere. The crust, part

An auditor who uses the work of an auditor's external specialist may refer to the specialist in the auditor's report if the:_________ A. Auditor's use of the sp

PLEASE HELP!! Solve the triangle

if you could teach the world one thing, you would teach..

y is directly proportional with x. Write an equation that shows the relationship if x=2 and y=6. A. y=3x B. 6y=2x C. y=13x D. 3y=x

What argument does the author anticipate and indirectly refute in this excerpt from the Declaration of Independence?

Molly and Norachai are selling pies for a school fundraiser. Customers can buy blueberry pies and pumpkin pies. Molly sold 5 blueberry pies and 12 pumpkin pies

You've been drafted for the safety committee. One of your first tasks is to inventory all of the fire extinguishers and make certain that the correct types are