millerluke millerluke

02-10-2020
Mathematics

contestada

Solve the system by substitution.
3x +2y=-21
x+y=-9

Respuesta :

Ukmmmmm Ukmmmmm

02-10-2020

Answer:

Step-by-step explanation:

3x +2y=-21 and x+y=-9

3x +2y=-21 and x = -9-y

=> 3(-9 - y) + 2y = -21

-27 -3y + 2y = -21

-y = 6

y= -6

=> x = -9+6= -3

Answer Link

Otras preguntas

In the 2000 election, California had the A.most electoral votes and selected George Bush for president B.least electoral votes and selected Al Gore for presiden

Before Mendel's work, the commonly held belief was that __________. a) the offspring of two parents received traits from only the mother b) the offspring of two

Which type of macromolecule is made of amino acids

Which of the following constitutes an unintended result of the Latin American revolutions? A) the complete Independence from Spain B) the breakdown of the caste

How many different arrangements of the letters in the word power

Emma uses a 250-meter roll of crepe paper to make steamers. How many dekameters of crepe paper does Emma use?

What is the fluid that fills the nucleus called?

solve for y by using elimination -4x + 8y = 10 7x + 9y = 19

Jill sold half of her comic books and then bought sixteen more. She now has 36. With how many did she begin with?

what is 21% of 30.00