02-11-2016
Mathematics

contestada

-x+2y=9
-7x-2y=-1
Solve each system by elimination

Respuesta :

03-11-2016

x - 2y = - 9
7x + 2y = 1

x - 2y = - 9
(+)
7x + 2y = 1
___________
8x = - 8

x = - 1

- 1 - 2y = - 9
2y = 8
y = 4

i am a mathematics teacher. if anything to ask please pm me

Answer Link

Otras preguntas

Find the component of the set given

E Unit Quiz 1: Perimeter and Area GEOM-043-T005 Geometry, Part 2 (TL) / Unit 1: Perimeter and Area 30. Calculate the perimeter of ADEF if a = 12.7, b= 11.4, and

Find the equation of the line that passes through (0, -3) and is parallel to the line joining the points (9, 2) and (3, -5).

Justin saw a pothole on the trail barely in time to leap over it. He very nearly lost his balance and took several stumbling steps before stopping without falli

Which represents a strand of RNA bases?

Please HelpCreate 10 to 15 footnote annotations, or explanatory notes, to define some of Boyle's more difficult language and to show students how Boyle makes an

36. MULTIPLE CHOICE What is the solution of 2n - 4 > - 12? (Section 4.4) A. n < -10 B. n < -4 C. n > -2 D. n > -4

A box contains 72 cups of fruit juice. one serving size is 12 cup. how many servings can be made from the fruit juice?

Your company has developed and implemented countermeasures for the greatest risks to their assets. However, there is still some risk left. What is the remaining

which one these grids is shaded red and blue