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

Which arrangement of the earth , sun and moon explains the lowest low tide of the month?
new mexicos land area is about 0.03 of the total area of the united states. what percent is new mexicos land area of total area of the untied states?
What is the belief that people should be as free as possible from government restraints?
simplify |-4.3| + |4.3| . A. -8.6 B. 0 C. 8 D. 8.6 My answer is C but i'm not to sure.....
What is conflict? a. the main character in a story b. the struggle between forces in the plot c. the character or force that brings complication to the plot
_____ convey information from specialized cells in the sense organs to the brain. a. Hormones b. Motor neurons c. Glial cells d. Sensory neurons
One should avoid using the information on a site if
Which of the following is an independent clause? A. Whether they want to or not B. Brushed his teeth C. Running around the corner D. The boy ran
When the President is elected, the U.S. Chief Justice _____
A 9-kg bag of mangoes for $12 ________ dollars per kg