mikkywillly mikkywillly
  • 15-04-2016
  • Mathematics
contestada

What is the value of y in the solution to the following system of equations?

2x + y = −4
5x + 3y = −6

Answer for Blank 1:

Respuesta :

DeannaJ
DeannaJ DeannaJ
  • 15-04-2016
2x+ y = -4       5x + 3y = -6
y= -4 -2x    

substitute y=-4-2x into 5x+3y=-6
5x + 3(-4-2x) = -6
5x -12 -6x =-6
-x=6
x=-6

sub x=-6 into 2x+y=-4
-12 + y = -4
y=8

x=-6 and y=8

Answer Link

Otras preguntas

Express 31/30 as a mixed number. What is the answer?
if you leave a wet paper towel out on a counter,it will eventually dry. which change of state causes this?
Is the outside of cheese turning green from mold a chemical change?
how did the two sides in the American revolution differ?
Osmosis occurs through water channel proteins called ...
What is the greatest common factor of 60,90, and 120
the number is 57,733 contains two sets of digits in which one digit is ten times as great as the other. what are the values of the digits in each set
It takes Franklin 14 hours to make a 200-square-foot cement patio. It takes Scott 10 hours to make the same size patio. Which equation can be used to find x, th
What people and events shaped the abolition movement the most
What structure allows gases to enter a leaf