salvatorestefa salvatorestefa
  • 01-02-2021
  • Mathematics
contestada

solutions to 2-variable equations y=-2x-5

Respuesta :

dtorres4546
dtorres4546 dtorres4546
  • 01-02-2021

Answer:(1, -3).

Step-by-step explanation:

If y=2x-5 is equation (1) and 4x-y=7 is equation (2), then substitute equation (1) in equation (2):

4x - (2x - 5) = 7

4x - 2x + 5 = 7

2x = 7-5

2x = 2

x = 1

Now substitute the value of x in equation (1) to find the value of y:

y = 2 (1) - 5

y = 2 - 5

y = -3

Answer Link

Otras preguntas

Where is the removable discontinuity of f(x)= x+5/x^2+3x-10 x= -5 x= -2 x= 2 x= 5
What is the probability that a point chosen at random in the given figure will be inside the smaller triangle? Enter your answer, as a fraction in simplest form
The electrical stimulus for each human heartbeat begins in the ____ at the _____ node.
2. What is the mode of the data set? 27,35,57,36,44,57,33,34,66,30,33,42,57,23,35 A. 35 B. 33 C. 42 D. 57
I need help with #4. Please explain why in detail.
Is slice of pizzas is compound, Element, Homogeneous mixture, or Heterogeneous Mixture? Is Chunky salsa is compound,Element,Homogeneous Mixture, Or heterogeneo
there are 180 students in the gym for an assembly. if 5% of them are girls, how many girls are there
calculate the root mean square speed of hydrogen molecule at 800k
what is the concentration of 10.00 ml of hbr if it takes 16.73ml of a 0.253 M liOH solution to neutralize it
rounding 0.912 to the nearest hundredth