7004035 7004035
  • 26-05-2022
  • Mathematics
contestada

How many solutions exist for each system of equations?
x + 2y = –1
2x + 3y = 0

Respuesta :

Аноним Аноним
  • 26-05-2022

Answer:

2 solutions   x = 3 y = -2.

Step-by-step explanation:

x + 2y = –1

2x + 3y = 0

Multiply first equation by -2:

-2x - 4y = 2      Adding this to second equation:

       - y = 2

y = -2.

Plug this into first equation:

x - 4 = -1

x = 3.

Answer Link

Otras preguntas

Why was the approach of structuralism abandoned over time? Question 3 options: a) Structuralism did not apply the scientific method b) It was too subjective,
Who is the inventor of the steel manufacturer
which expressions are equivalent to the one below check that all apply 25^x/5^x A.5^x B.5 C(25/5)^x D.5^x*5^x/5^x E.(25-5)^x F.25^x
Their sum is 20 and The sum of their squares is less than 362.
The theory in which aging is attributed to our bodies
How do organisms get the energy they need? a. by using the sun's energy to break down food molecules and form chemicals b. by breathing oxygen into the lungs an
Identify the vertex and the axis of symmetry of the parabola. Identify points corresponding to P and Q?
why does the efficiency of a complex machine decreases as more simple machines are used ?
Refer to Explorations in Literature for a complete version of this story. Read this excerpt from “The Pit and the Pendulum” by Edgar Allan Poe. There was a di
Simplify. (8 + 14m) + m 22m 23m 9 + 14m 8 + 15m