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

a) The pass marks in an examination is 40%. Rajani secured 295 marks andfailed by 25 marks. Find the full marks of the examination​
what is (50 + 100 * 70) / 65 + 97 - 84 * 50
Find the angular size of a circular object with a 1-inch diameter viewed from a distance of 4 yards. The angular size of the object is Iº. (Do not round until t
A beaker contains 114 pints of a chemical. A scientist pours the chemical out of the beaker until only 3 fluid ounces remain. How many fluid ounces of the chemi
FLVS world history 5.08 exam how does this map show that Europe has changed greatly since the 17th century
CITY |. Temperature (°F) St. Louis | 32 Montreal |. -18 Buffalo. | -8 Orlando. |. 68 Juneau. |. -26 By noon, the temperature In Buffalo had risen by 14 °F. What
it’s being timed tysm xx
An agricultural researcher wishes to see if a kelp extract prevents frost damage on tomato plants. two similar small plots are going to be planted with the same
help please!integrate the following:[tex] \displaystyle \int \cos ^{3} (x) dx[/tex]​
What is the area of this triangle?