michelle202 michelle202
  • 02-02-2018
  • Mathematics
contestada

How do you solve these systems by elimination level 3

How do you solve these systems by elimination level 3 class=

Respuesta :

anchitthawi
anchitthawi anchitthawi
  • 02-02-2018
x+y = -3 ---(1)
5x-2y = -50 ---(2)

5x+5y = -15 ---(3) (multiplied (1) by 5)
5y-(-2y) = -15-(-50) ((3)-(2))
7y = 35
so y = 5

then x+5 = -3
so x = -3-5 = -8
Answer Link

Otras preguntas

the title given to the Russian monarch
What is the official language of China? a. Falun Gong c. Han b. Mandarin d. Cantonese
Which sentence is an example of an objective statement? A. The elephant is a common animal found in zoos throughout the United States. B. The Phoenix Zoo's el
what's the square root of 170
Facts about homogeneous mixtures
A major arc will have a measure that is _____
which of the following images would be the best symbol of the turning point in Texas history after annexationA. an airplane because the population growth took o
Add 8 and 7, then multiply 2- write an expression using parentheses
Memorization strategies can include a. Talking and singing c. Writing and editing b. Revising and editing d. Repetition and flashcards
Answer in a paragraph: Were programs such as The Hollywood Ten,McCarran-Walter Act,Federal Employee Loyalty Program and HUAC,which were designed to stop the spr