haileyraehewes haileyraehewes
  • 24-01-2020
  • Mathematics
contestada

How do I do this
X+y=-4
3x-6y=15

Respuesta :

Yang100
Yang100 Yang100
  • 24-01-2020

Answer:

x=-1, y=-3. (-1, -3).

Step-by-step explanation:

x+y=-4

3x-6y=15

---------------

x=-4-y

3(-4-y)-6y=15

-12-3y-6y=15

-12-9y=15

9y=-12-15

9y=-27

y=-27/9

y=-3

x+(-3)=-4

x-3=-4

x=-4+3

x=-1

Answer Link

Otras preguntas

Plants grow in many different shapes and sizes. Much of their shape depends on an internal structure that is composed of carbon-containing molecules such as cel
Which is the scale factor proportion for the reduction?
solve the following formula for H. r=n/2(b+H)
Chang knows one side of a triangle is 13 cm. Which set of two sides is possible for the lengths of the other two sides of this triangle? 05 cm and 8 cm 06 cm an
The solo vocalist begins to sing a bunch of random syllables and sounds that don't make any sense. What is this vocalist MOST likely demonstrating. A Crescendo
what was the first railroad in texas no initials, please.
Find the area........................
Please help helpppppppppp it’s 7to10
3x + 2 y = 8 5x + 2 y = 12 What is the solution of the system of equations shown above?
What role did historical figures play in the introduction and spread of religious beliefs?