katie276 katie276

22-11-2017
Mathematics

contestada

Solution to 5x+y=-8 and 4x-2y=-40

Respuesta :

choixongdong choixongdong

22-11-2017

5x+y=-8 so y = -5x - 8
4x-2y=-40

substitute y = -5x - 8 into 4x-2y=-40
4x- 2y = -40
4x-2( -5x - 8) = -40
4x + 10x + 16 = -40
14x = -56
x = -4

y = -5x - 8
y = -5(-4) - 8
y = 20 - 8
y = 12

answer
x = -4 and y = 12

Answer Link

Otras preguntas

Solve the system of two equations in two variables. 9x + 4y = -63 3x - 2y = -21 Write the solution in the form (a,b), or write: No solution

What is the value ?92,007,642,188

Tara's boss always calls her "Miss," but refers to his other employees by name. He also goes out of his way to hold open a door for her, and has asked her a num

What is the value of y when x = 4? 2x - 3y = 20 O A. -9 OB. -4 c. 4 OD. 8

What is the range of the given function? A. {x | x = –5, 1, 4, 6} B. {y | y = –7, –1, 0, 9} C. {x | x = –7, –5, –1, 0, 1, 4, 6, 9} D. {y | y = –7, –5, –1, 0,

Write a complete Java program to: 1. prompt the user to enter all of his/her quiz scores. 2. calculate and display the average entered quiz score without the th

Invoking _____ returns the first element in an ArrayList x. x.get(1) x.get() x.get(0) x.first()

Find the value of 2y for the figure.

Refer to a deck of fifty-two playing cards (jokers not allowed). How many five-card poker hands are possible??

Questions 23-26 I need help with