courtneygaffney4755
courtneygaffney4755 courtneygaffney4755
  • 04-02-2019
  • Mathematics
contestada

can someone explain the elimination method to me for this problem?

can someone explain the elimination method to me for this problem class=

Respuesta :

Аноним Аноним
  • 04-02-2019

Answer:

x = -8, y = 4.

Step-by-step explanation:

5x + 3y = -28

5x + 10y = 0

If we subtract these 2 equations we eliminate  x:-

0 + 3y - 10y = -28

-7y = -28

y = -28/-7 = 4.

Now substitute y = 4 in the first equation:

5x + 3(4) = -28

5x + 12 = -28

5x = -40

x = -8.

Answer Link

Otras preguntas

During the Great Depression: OA. many people relied on credit to buy food B. many people invested in the stock market. C. many people bought second homes. D. m
Calculate the area and perimeter of the circle.
what do you consider to be the primary ethical, social, and political issues regarding information system quality?
Based on this quote why did the Jews choose resistance against the nazis in places like the Warsaw ghetto?
what is the slope for (3, 8) and (2, 6). ?
approximately how high to the nearest tenth of a metre is emma's kite above ground
What is the most essential element in bone marrow ?
How many groups are in the modern periodic table?
Given that Log 10^2=0.301 and log10^3= 0.477, find the value of log10^6
Explain how and why family systems therapy might be an effective means of intervention with delinquent youth. What might be done in family systems therapy with